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Cross-layer modeling of adaptive wireless links for QoS support in heterogeneous wired-wireless networks
Future wired-wireless multimedia networks require diverse quality-of-service (QoS) support. To this end, it is essential to rely on QoS metrics pertinent to wireless links. In this paper, we develop a cross-layer model for adaptive wireless links, which enables derivation of the desired QoS metrics analytically from the typical wireless parameters across the hardware-radio layer, the physical layer and the data link layer. We illustrate the advantages of our model: generality, simplicity, scalability and backward compatibility. Finally, we outline its applications to power control, TCP, UDP and bandwidth scheduling in wireless networks.
  • References (23)
  • Cited By (27)
Gordon L. Stüber48
Estimated H-index: 48
(Georgia Institute of Technology)
744 Citations Source
Mohamed-Slim Alouini67
Estimated H-index: 67
(California Institute of Technology),
Andrea J. Goldsmith81
Estimated H-index: 81
(Stanford University)
We first study the capacity of Nakagami multipath fading (NMF) channels with an average power constraint for three power and rate adaptation policies. We obtain closed-form solutions for NMF channel capacity for each power and rate adaptation strategy. Results show that rate adaptation is the key to increasing link spectral efficiency. We then analyze the performance of practical constant-power variable-rate M-QAM schemes over NMF channels. We obtain closed-form expressions for the outage probab...
665 Citations Source Cite
Qingwen Liu11
Estimated H-index: 11
(University of Minnesota),
Shengli Zhou53
Estimated H-index: 53
Georgios B. Giannakis113
Estimated H-index: 113
Providing guaranteed quality of service (QoS) with efficient bandwidth utilization over wireless fading channels is challenging. In this paper, we derive the throughput, the packet loss rate and the average delay of an end-to-end wireless link, where the transmitter relies on adaptive modulation and coding (AMC) at the physical layer while accounting for finite-length buffer effects at the data link layer. Guided by our cross-layer performance analysis, we develop a simple procedure to determine...
2 Citations Download PDF Cite
Qingwen Liu11
Estimated H-index: 11
(University of Minnesota),
Shengli Zhou53
Estimated H-index: 53
(University of Connecticut),
Georgios B. Giannakis113
Estimated H-index: 113
(University of Minnesota)
Assuming there are always sufficient data waiting to be transmitted, adaptive modulation and coding (AMC) at the physical layer have been traditionally designed separately from higher layers. However, this assumption is not always valid when queuing effects are taken into account at the data link layer. In this paper, we analyze the performance of a wireless system with finite-length queuing and AMC. We characterize the queuing service process induced by AMC, and derive the recursion of the queu...
20 Citations Download PDF Cite
Carla Fabiana Chiasserini39
Estimated H-index: 39
(Polytechnic University of Turin),
Michela Meo37
Estimated H-index: 37
(Polytechnic University of Turin)
Wireless access to the Internet requires that information integrity be preserved while transmitting data over the radio channel. Automatic repeat request (ARQ) schemes and transport control protocol (TCP) are often used as error-control techniques at the link layer and at the transport layer, respectively. In this paper, we study the interactions between an ARQ protocol and TCP when the last hop of the connection path is wireless. Link layer retransmissions are used to hide losses over the wirel...
43 Citations Download PDF Cite
Sorour Falahati9
Estimated H-index: 9
(Uppsala University),
Arne Svensson26
Estimated H-index: 26
+ 1 AuthorsMikael Sternad25
Estimated H-index: 25
When adaptive modulation is used to counter short-term fading in mobile radio channels, signaling delays create problems with outdated channel state information. The use of channel power prediction will improve the performance of the link adaptation. It is then of interest to take the quality of these predictions into account explicitly when designing an adaptive modulation scheme. We study the optimum design of an adaptive modulation scheme based on uncoded M-quadrature amplitude modulation, as...
192 Citations Source Cite
Angela Doufexi23
Estimated H-index: 23
(University of Bristol),
Simon Armour22
Estimated H-index: 22
(University of Bristol)
+ 4 AuthorsPeter Karlsson7
Estimated H-index: 7
At present, WLANs supporting broadband multimedia communication are being developed and standardized around the world. Standards include HIPERLAN/2, defined by ETSI BRAN, 802.11a, defined by the IEEE, and HiSWANa defined by MMAC. These systems provide channel adaptive data rates up to 54 Mb/s (in a 20 MHz channel spacing) in the 5 GHz radio band. An overview of the HIPERLAN/2 and 802.11a standards is presented together with software simulated physical layer performance results for each of the de...
372 Citations Download PDF Cite
J. Karaoguz1
Estimated H-index: 1
This article presents an overview of high-rate wireless personal area networks, its targeted applications, and a technical overview of medium access control and physical layers, and system performance. The high-rate WPANs operate in the unlicensed 2.4 GHz band at data rates up to 55 Mb/s that are commensurate with distribution of high-definition video and high-fidelity audio. An industry effort to create a MAC and PHY layer standard specification for high-rate WPANs has been ongoing in the IEEE ...
147 Citations Source Cite
Hlaing Minn30
Estimated H-index: 30
(Victoria University, Australia),
Mao Zeng5
Estimated H-index: 5
Vijay K. Bhargava49
Estimated H-index: 49
(University of Victoria)
Adaptive automatic repeat request (ARQ) schemes are quite effective for throughput enhancement in time-varying mobile channel environments. An ARQ scheme with adaptive error-correcting codes is considered. A robust channel sensing algorithm by making use of XOR-ing is proposed for link adaptation. With the proposed channel estimation algorithm, an adaptive scheme that adapts its error-correcting codes according to channel conditions is presented. The efficiency of the proposed adaptive ARQ schem...
54 Citations Download PDF Cite
Michel Daoud Yacoub23
Estimated H-index: 23
(State University of Campinas),
J.E.V. Bautista1
Estimated H-index: 1
L. Guerra de Rezende Guedes1
Estimated H-index: 1
This paper proposes a fading model that leads to a formal, but simple method to obtain the exact formula of the Nakagami-m published in 1960 distribution for m=n/2, with n a nonzero integer number. Based on such a model, the joint distribution of the envelope and its time derivative are accomplished, and exact formulas for the level crossing rate (closed-form formula) and for the average fade duration are derived. Simulation curves and exact formulas are checked against each other and a very goo...
267 Citations Source Cite
  • References (23)
  • Cited By (27)
Ghaida A. Al-Suhail3
Estimated H-index: 3
(University of Basrah)
Video transmission often suffers from various errors over wireless networks. Due to errors, the discarded link layer packets impose a serious limitation on the maximum achievable throughput over wireless channel. To face this challenge and to improve the overall TCP-Friendly video throughput, this paper proposes a new robust error-model for MPEG-4 video stream over a point-to-point wireless network. A noisy wireless channel is modeled for random bit errors causing packet loss with some restricti...
3 Citations Source
Ana I Pérez-Neira2
Estimated H-index: 2
Marc Realp Campalans2
Estimated H-index: 2
The performance of a wireless data communication system might be measured in many different ways. One key parameter is the spectral efficiency. Spectral efficiency is defined as the amount of error-free information that can be transmitted over a given bandwidth in a specific digital communication system. It is in fact a measure of how efficiently bandwidth resources are used by the different protocols of the communication stack. It is usually measured in bits per second per hertz denoted by bps/...
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Farag Sallabi9
Estimated H-index: 9
(College of Information Technology),
Khaled Shuaib13
Estimated H-index: 13
(College of Information Technology)
In this paper, we analyze the quality of service QoS framework supported by the Long-Term Evolution standard and model the behavior of a finite-state downlink wireless fading channel based on the configurations and system parameters provided by the 3GPP Long-Term Evolution and provide experimental results. The model can be used to provide realistic physical layer input to evaluate the performance of algorithms at the upper layers. For example, the medium access control layer will use this data t...
2 Citations Source Cite
2010 in Wireless NetworksIF: 1.98
Spyridon Vassilaras1
Estimated H-index: 1
In this paper, a novel cross-layer Adaptive Modulation and Coding scheme that optimizes the overall packet loss (by both transmission errors and excessive delays) probability under a given arrival process is developed. To this end, an improved Large Deviations approximation for the fraction of packets that suffer from excessive queuing delay is proposed. This approximation is valid for G/G/1 queues with infinite buffers that are driven by stationary arrival and service processes which satisfy ce...
12 Citations Source Cite
Lch Gu (Hefei University of Technology), Zhw Ni (Hefei University of Technology), Zhj Wu (Hefei University of Technology)
This paper present a new method for the forecasting of network traffic in heterogeneous environment. This research investigates performance evaluation of network interface port on heterogeneous services and technologies environment. We propose an enhanced equation to evaluate the performance of network interface port via Little Law and Queuing theories to improve the evaluation algorithm. To get accuracy results on the performance of simulation model, we measure (verify and validate) data from l...
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2009 in International Conference on Wireless Communications and Mobile Computing
Sarra Ben Oubira1
Estimated H-index: 1
(École Normale Supérieure),
Mounir Frikha5
Estimated H-index: 5
(École Normale Supérieure),
Sami Tabbane8
Estimated H-index: 8
(École Normale Supérieure)
Next generation wireless and mobile communication systems integrate different wireless networks; each network is optimized for some specific services and coverage area to satisfy the demands of various network users. A widespread vision of the fourth generation (4G) mobile networks includes coexistence of current wireless technologies such as WLAN, WiMAX, General Packet Radio Service (GPRS) and Universal Mobile Telecommunications System (UMTS). Different technologies will be bound together into ...
7 Citations Source Cite
2012 in Wireless Communications and Networking Conference
Marcelo Magalhaes (Naval Postgraduate School), Terry E. Smith (Naval Postgraduate School), Phillip E. Pace16
Estimated H-index: 16
(Naval Postgraduate School)
This paper develops a new expression for a network node capability value used to quantify the node's ability to maintain an optimal information flow in a mobile communication network. The capability value is adaptable and is a function of the bandwidth efficiency, the data rate, the energy-per-bit to noise spectral density power ratio and reflects how effectively the node can receive, process and transmit data. To evaluate the capability expression a generalized connectivity metric is used which...
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2012 in International Conference on Communications
Venkata Ramkumar2
Estimated H-index: 2
(Aalborg University),
Andrei Lucian Stefan3
Estimated H-index: 3
(Aalborg University)
+ 2 AuthorsRamjee Prasad46
Estimated H-index: 46
(Aalborg University)
This paper proposes a novel efficient admission control (AC) algorithm, which guarantees quality of service (QoS) for new users while maintaining QoS for existing users and also increases the number of users admitted in to the system. To guarantee the QoS, a Markov based modeling of the queue in the MAC layer is done by considering the effects of adaptive modulation and coding (AMC) in the physical layer. Using the Markov model, the number of resources required by the new user is predicted by ta...
8 Citations Source Cite
L.A. Prashanth1
Estimated H-index: 1
(Indian Institute of Science),
K. Gopinath9
Estimated H-index: 9
(Indian Institute of Science)
Next generation wireless systems employ Orthogonal frequency division multiplexing (OFDM) physical layer owing to the high data rate transmissions that are possible without increase in bandwidth. While TCP performance has been extensively studied for interaction with link layer ARQ, little attention has been given to the interaction of TCP with MAC layer. In this work, we explore cross-layer interactions in an OFDM based wireless system, specifically focusing on channel-aware resource allocation...
3 Citations Source Cite
Thimma V. J. Ganesh Babu (Ryerson University), Alagan Anpalagan25
Estimated H-index: 25
(Ryerson University),
Jeremiah F. Hayes (University of Victoria)
For emerging wireless mesh networks, multicode multicarrier CDMA(MC-CDMA) based technology is one of the most viable candidates. We perform stochastic modelling of the queues at the mobile station for uplink communication with multicode multicarrier CDMA system with two types of traffic, namely real-time and non-real-time. Each traffic is assigned its own codes. However, the non-real-time traffic is allowed to use codes assigned to real-time traffic, when real-time traffic is not using its codes...
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