计算机应用与软件2011，Vol.28Issue(4)：162-164,185,4.
一种自组织网络MAC层退避算法
A BACKOFF ALGORITHM OF MAC PROTOCOL IN AD HOC NETWORKS
摘要
Abstract
The backoff algorithm of S-BEB is presented in allusion to the deficiencies of binary exponential backoff (BEB) algorithm the IEEE 802.11 DCF communication mechanism used. To keep simple and efficient which the BEB possesses as its feature, S-BEB employs two parameters in MAC protocol of DCF, dynamically modifies the increasing extent of contention window (CW) when the nodes conflicting during data packet transmission,while enlarges the CW after a successful transmission of data packet completed by nodes to reduce the conflict of contention in next turn. Simulation of the S-BEB is implemented by using OPNET software together with the analyses. Studying results show that the network performances of S-BEB algorithm are better than the classical BEB's no matter in delay, throughput or fairness.关键词
自组织网络/IEEE802.11/退避算法/OPNET软件Key words
Ad hoc/ IEEE 802.11/ Backoff algorithm/ OPNET software引用本文复制引用
邵蔚,徐晨..一种自组织网络MAC层退避算法[J].计算机应用与软件,2011,28(4):162-164,185,4.基金项目
江苏省高校自然科学重大基础研究项目(07KJAS1007). （07KJAS1007）
