CAJ | 학술논문

针对无线体域网中传输链路存在中断情况从而消耗额外能量的问题，在多源多中继系统模型中引入网络编码，提出一种基于网络编码多中继协作算法，并分析了该算法下系统的网络能耗，推导出系统的每比特网络整体能耗公式。仿真结果表明：该算法与传统的多路径多中继转发算法相比，可以较大程度的减少网络的整体能耗，适当地增加信源节点或者减少中继节点的数目对降低网络的整体能耗也有一定的作用。该算法能减少多源多中继网络的整体能耗，延长网络的生命周期。
침대무선체역망중전수련로존재중단정황종이소모액외능량적문제，재다원다중계계통모형중인입망락편마，제출일충기우망락편마다중계협작산법，병분석료해산법하계통적망락능모，추도출계통적매비특망락정체능모공식。방진결과표명：해산법여전통적다로경다중계전발산법상비，가이교대정도적감소망락적정체능모，괄당지증가신원절점혹자감소중계절점적수목대강저망락적정체능모야유일정적작용。해산법능감소다원다중계망락적정체능모，연장망락적생명주기。
Network coding is introduced to multi-source-multi-relay systems to solve the extra energy con-sumption problem caused by transmission link outage in wireless body area networks ( WBAN ) , and a multi-relay cooperative algorithm based on network coding is proposed to analyze the system’s network en-ergy consumption as well. Then an overall-energy-consumption-per-bit formula is derived according to the analysis result of the proposed algorithm. The simulation results show that the proposed algorithm can largely reduce the network’s overall energy consumption compared with the traditional multi-path-multi-relay transmission algorithm. Increasing the number of source nodes or decreasing the number of relay nodes can also help lower the overall energy consumption. The proposed algorithm can reduce the overall energy consumption of multi-source-multi-relay networks and extend the network lifetime.