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Full-Text Articles in Social and Behavioral Sciences
Joint Transmission Power Control And Relay Cooperation For Wban Systems, Hongyun Zhang, Farzad Safaei, Le Chung Tran
Joint Transmission Power Control And Relay Cooperation For Wban Systems, Hongyun Zhang, Farzad Safaei, Le Chung Tran
Faculty of Engineering and Information Sciences - Papers: Part B
Improving transmission reliability is a crucial challenge for Wireless Body Area Networks (WBANs) because of the instability of channel conditions and the stringent Packet Loss Ratio (PLR) requirement for many WBANs applications. On the other hand, limited by the size of WBAN nodes, the energy consumption of WBAN nodes should be minimized. In this paper, we jointly consider transmission power control, dynamic slot scheduling and two-hop cooperative mechanism and propose an Autocorrelation-based Adaptive Transmission (AAT) scheme that achieves a better trade-off between transmission reliability and energy consumption for WBAN systems. The new scheme is designed to be compatible with IEEE …
Autocorrelation Based Transmission Power Control In Wbans, Hongyun Zhang, Farzad Safaei, Le Chung Tran
Autocorrelation Based Transmission Power Control In Wbans, Hongyun Zhang, Farzad Safaei, Le Chung Tran
Faculty of Engineering and Information Sciences - Papers: Part B
In this paper, we propose an autocorrelation-based transmission power control (A-TPC) method to increase the transmission reliability and reduce the energy consumption. In A-TPC, data packets from multiple sensor nodes are scheduled in the TDMA-fashion. The transmission power level and the slot scheduling are jointly optimized based on a temporal autocorrelation model. The channel datasets collected from real WBAN daily scenarios are imported into our simulation model to evaluate the performance of A-TPC. Simulation results demonstrate that A-TPC significantly improves the transmission reliability and reduces the energy consumption.