Network Scalability Comparison of IEEE 802.15.4 and Receiver-Assigned CDMA

Many future wireless sensor networks will feature very high node density and low data rates per node as well as the desire for low latency and high network dependability. Existing medium access control (MAC) layer protocols, namely IEEE 802.15.4, may not be suitable for these networks due to their reliance on carrier sense multiple access with collision avoidance (CSMA-CA) contention processing. A modified IEEE 802.15.4 MAC protocol that...