【摘要】 针对漏斗-MAC协议的不足,给出一种分布式时隙分配(DRAND)算法改进方案。在基于集中式时分多址(TDMA)调度算法的漏斗-MAC协议基础上引入分布式时隙分配方案,保证节点两跳范围内的时隙没有重叠,从而能最大限度地避免数据干扰和冲突。NS-2仿真表明,改进的协议能进一步减少系统能量消耗,维持较高的信道利用率。更多还原

【Abstract】 Concerning the disadvantage of funneling-MAC protocol,this paper gave an improved proposal of DRAND algorithm.Based on the centralized Time Division Multiple Access(TDMA) scheduling algorithm of funneling-MAC protocol,it introduced the DRAND scheme,which guaranteed nodes did not overlap within the time slots in two-hop range,so it could greatly avoid interference and collision.The NS-2 simulation results show that the improved protocol can effectively reduce system power consumption,and maintain higher channel utilization.更多还原