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Shengli Zhou
University of Connecticut
298Publications
53H-index
11.3kCitations
Publications 298
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This paper considers a two-hop network consisting of a source, two parallel half-duplex relay nodes, and two destinations. While the destinations have an adequate power supply, the source and relay nodes rely on harvested energy for data transmission. Different from all existing works, the two relay nodes can also transfer their harvested energy to each other. For such a system, an optimization problem is formulated with the objective of maximizing the total data rate and conserving the source a...
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2018 in IEEE Access
Jinkang Zhu4
Estimated H-index: 4
(University of Science and Technology of China),
Ming Zhao7
Estimated H-index: 7
(University of Science and Technology of China),
Shengli Zhou53
Estimated H-index: 53
(University of Connecticut)
The ultra-dense network (UDN) has been identified as an appealing solution to address the huge service demands in future 5G and beyond. In this paper, we propose an optimization design of UDN balancing user mobility and network densification, where the massive users are divided into different groups according to their moving speeds, and different groups are served by different subnets. This way, the UDN can adjust subnet parameters to meet the service demands using minimum resource. Specifically...
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2018 in IEEE Access
Yuxi Han1
Estimated H-index: 1
(University of Science and Technology of China),
Wuyang Zhou10
Estimated H-index: 10
(University of Science and Technology of China),
Ming Zhao7
Estimated H-index: 7
(University of Science and Technology of China)
... more
In the future fifth generation communication systems, sparse code multiple access (SCMA) shows strong competitiveness as a novel non-orthogonal multiple access (NOMA) technique. Attributing to multi-dimensional codebooks, the SCMA can obtain shaping gain and provide a better performance than some other NOMA schemes, such as pattern division multiple access, low-density signature (LDS), and so on. However, under higher user load, each orthogonal resource in high-order SCMA systems is occupied by ...
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Yicheng Wang , Ming Zhao7
Estimated H-index: 7
,
Dan Deng1
Estimated H-index: 1
... more
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Zhaohui Wang15
Estimated H-index: 15
,
Shengli Zhou53
Estimated H-index: 53
,
Zhengdao Wang26
Estimated H-index: 26
Underwater systems for ocean exploration and monitoring consist of a mix of geographically distributed stationary infrastructure and mobile units. The stationary infrastructure could be bottom-anchored nodes and surface buoys that are connected to a control center via cables and in-air radio links. Both the stationary and mobile units can be equipped with acoustic communication modules for underwater wireless data transmission. With the backbone (cable or radio) connection, those acoustic commun...
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Yanhuan Sun1
Estimated H-index: 1
(University of Science and Technology of China),
Ming Zhao7
Estimated H-index: 7
(University of Science and Technology of China),
Sihai Zhang8
Estimated H-index: 8
(University of Science and Technology of China)
... more
Massive amount of small data generated by machine type communications (MTC) will pose a challengeto the future fifth generation (5G) wireless network. Since the information from or to the machine type users aggregating closely are highly correlated, the relevance of data can be excavated by big data analysis to help improve the spectral efficiency. In this paper we proposed an aggregation transmission scheme (ATS) for MTC downlink transmissions in which the transmission order of users data packe...
Ref 20Cited 1
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Lu Ma3
Estimated H-index: 3
(Harbin Engineering University),
Shengli Zhou53
Estimated H-index: 53
(University of Connecticut),
Gang Qiao4
Estimated H-index: 4
(Harbin Engineering University)
... more
Superposition coding (SC) is a nonorthogonal scheme for downlink communications, in which all users are allowed to use the full degrees of freedom of the channel and successive interference cancellation (SIC) is adopted for user decoding. Combining SC with orthogonal frequency-division multiplexing (OFDM) modulation, the optimal resource allocation depends on the perfect channel state information (CSI) of all users at the transmitter, which is hard to obtain for underwater acoustic (UWA) channel...
Ref 37Cited 4 Source Cite this paper
2017 in IEEE Communications Letters [IF: 1.99]
Ming Zhao7
Estimated H-index: 7
(University of Science and Technology of China),
Shengli Zhou53
Estimated H-index: 53
(University of Connecticut),
Wuyang Zhou10
Estimated H-index: 10
(University of Science and Technology of China)
... more
Sparse coded multiple access (SCMA) has received considerable attention recently as a candidate multiple access scheme for 5G cellular systems. This letter proposes an improved uplink SCMA scheme where instead of the multi-dimensional constellation (MDC) mapping and a fixed number of nonzero elements per sparse codeword, a varying number of coded symbols from each user are directly mapped onto the resource elements. We show that the proposed SCMA scheme outperforms the MDC-SCMA scheme in terms o...
Ref 12Cited 2
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