通信学报
通信學報
통신학보
JOURNAL OF CHINA INSTITUTE OF COMMUNICATIONS
2014年
1期
198-206
,共9页
孙彦清%彭舰%刘唐%陈晓海
孫彥清%彭艦%劉唐%陳曉海
손언청%팽함%류당%진효해
无线传感器网络%负载均衡%动态分区%非均匀成簇%路由
無線傳感器網絡%負載均衡%動態分區%非均勻成簇%路由
무선전감기망락%부재균형%동태분구%비균균성족%로유
wireless sensor network%load balance%dynamic partition%uneven clustering%routing
针对节点负载不均而形成的“热区”问题,提出了一种基于动态分区负载均衡的分布式成簇路由协议(UCDP)。其核心思想是:将网络合理化地动态分区,使距离基站较近的区面积较小,从而减少需要承担转发任务节点的区内通信开销,节省更多的能量供数据转发使用;综合考虑距离因子和剩余能量因子进行区内非均匀成簇;有机结合簇内单跳和区间转发,区头与簇头共同协作进行路由传输。实验表明,协议具有较好的稳定性,显著延长了网络的生存周期。
針對節點負載不均而形成的“熱區”問題,提齣瞭一種基于動態分區負載均衡的分佈式成簇路由協議(UCDP)。其覈心思想是:將網絡閤理化地動態分區,使距離基站較近的區麵積較小,從而減少需要承擔轉髮任務節點的區內通信開銷,節省更多的能量供數據轉髮使用;綜閤攷慮距離因子和剩餘能量因子進行區內非均勻成簇;有機結閤簇內單跳和區間轉髮,區頭與簇頭共同協作進行路由傳輸。實驗錶明,協議具有較好的穩定性,顯著延長瞭網絡的生存週期。
침대절점부재불균이형성적“열구”문제,제출료일충기우동태분구부재균형적분포식성족로유협의(UCDP)。기핵심사상시:장망락합이화지동태분구,사거리기참교근적구면적교소,종이감소수요승담전발임무절점적구내통신개소,절성경다적능량공수거전발사용;종합고필거리인자화잉여능량인자진행구내비균균성족;유궤결합족내단도화구간전발,구두여족두공동협작진행로유전수。실험표명,협의구유교호적은정성,현저연장료망락적생존주기。
To solve the“hot spots”problem caused by uneven load energy, a novel distributed clustering routing protocol was proposed. Its core is an uneven clustering routing protocol based on dynamic partition(UCDP). In UCDP, the entire network’s energy consumption is balanced by dynamic partitioning, making the regions closer to the sink node with smaller nodes, which can preserve some energy for inter-region data forwarding. Considering the distance factor and re-sidual energy factor for uneven clustering in each region, cluster-heads and region-heads work together in UCDP. Via the combination of single-hop and multi-hop, DBUP has established an optimal energy-balanced routing protocol. Simulation results show that UCDP has good stability, and significantly prolongs the network life.