2018/03/15 by Samiya M. Shimly, David B. Smith, Shimly, Samiya M. +3
Computer Science · Engineering · #Advanced MIMO Systems Optimization #FOS: Computer and information sciences #Molecular Communication and Nanonetworks #Networking and Internet Architecture (cs.NI) #Wireless Body Area Networks #cs.NI
paper · pdf · doi:10.48550/arxiv.1803.05600
6 pages, 6 figures, IEEE International Conference on Communications (ICC), 2018. arXiv admin note: text overlap with arXiv:1701.08607
arxiv created 2018/03/15 · openalex publication_date 2018/03/15 · arxiv updated 2018/03/18 · openalex created_date 2022/10/04 · openalex updated_date 2026/07/28
In this paper, we propose a novel adaptive carrier sense multiple access scheme with collision avoidance (CSMA/CA) to perform efficient and reliable data transfer with increased throughput across multiple coexisting wireless body area networks (BANs) in a tiered architecture. We investigate the proposed scheme using two distributed cross-layer optimized dynamic routing techniques, i.e., shortest path routing (SPR) and cooperative multi-path routing (CMR). The channel state information from the physical layer is passed on to the network layer using an adaptive cross-layer carrier sensing mechanism between the physical and MAC layer, which adjusts the carrier sense threshold (e.g., RSSI) periodically based on the slowly-varying channel condition. An open-access experimental dataset of 'everyday' mixed-activities is used for analyzing the cross-layer optimization. Our proposed optimization using adaptive carrier sensing performs better than static carrier sensing with CSMA/CA as it reduces the continuous back-off duration and latency as well as significantly increases the throughput (in successful packets/s) by more than 50%. Adaptive CSMA/CA also shows 20% and 6% improvement over a coordinated TDMA approach with higher duty cycle for throughput and spectral efficiency, respectively, and provides acceptable packet delivery ratio and outage probability with respect to SINR.