摘要: 在基于802.11协议族的无线局域网中,不同于目前针对单一ap或多ap集中式功率控制方案,该文提出了针对临时大规模场景应用的分布式联合功率控制方案,一方面通过独立的预测和局部遍历获得目标功率等级,达到了减小ap间干扰的目的,提高网络整体吞吐量约3.1 Mb/s(未饱和),1.0 Mb/s(饱和),另一方面通过细粒度时隙调度增强ap对环境的适应能力。
关键词:
分布式功率控制,
时隙调度,
可变粒度
Abstract: Now the existent schemes to optimize the performance in wireless LAN is mainly based on centralized algorithms, which aim at family user. This paper proposes a distributed power control algorithm for large scale use. The scheme works based on prediction and sub-traverse, cooperating with a small granularity schedule which is called t-scale timeslot schedule. The simulation on NS2 shows that the scheme reduces the interference among access points and boosts the throughput of the whole network by 3.1 Mb/s(unsaturated) or 1.0 Mb/s(saturated), while the variety of the network can be responded timely.
Key words:
distributed power control,
timeslot schedule,
t-scale granularity
中图分类号:
龙 隆;戎蒙恬;刘 超. 基于IEEE802.11协议的分布式联合功率控制[J]. 计算机工程, 2008, 34(14): 101-103.
LONG Long; RONG Meng-tian; LIU Chao. Distributed Joint Power Control Based on IEEE802.11 Protocol[J]. Computer Engineering, 2008, 34(14): 101-103.