Congestion control mechanism based on sensitive queue in wireless access network
YAN Li-ming,NIU Yu-gang
Key Laboratory of Advanced Control and Optimization for Chemical Processes (East China University of Science and Technology), Ministry of Education, Shanghai 200237, China
Abstract：Since the wireless access network is subject to the effects of strong nonlinearity, large delay and random link loss, the classical Active Queue Management (AQM) has the problems of slow convergence rate and long response to queue in the actual control process. By analyzing the characteristics of Random Exponential Marking (REM) algorithm in the wireless access network, this paper proposed a new congestion control method of wireless access network based on sensitive queue, which improved the original price model of REM and overcame the insensitivity of price to the change of queue size. Moreover, a single neuron was utilized to optimize the parameters. Finally, the proposed algorithm was compared with REM, PI on NS2 simulation platform. The simulation results show that the proposed algorithm has fast convergence and strong robustness.
严黎明 牛玉刚. 基于队列敏感性的无线接入网络拥塞控制算法[J]. 计算机应用, 2012, 32(01): 123-126.
YAN Li-ming NIU Yu-gang. Congestion control mechanism based on sensitive queue in wireless access network. Journal of Computer Applications, 2012, 32(01): 123-126.
FLOYD S, JACOBSON V. Random early detection gateways for congestion avoidance ［J］. IEEE/ACM Transactions on Networking， 1993， 1(4)： 397-413.
[2]
HOLLOT C V, MISRA V, TOWSLEY D, et al. On designing improved controllers for AQM routers supporting TCP flows ［C］// Proceedings of the Twentieth Annual Joint Conference of the IEEE Computer and Communications Societies. Piscataway: IEEE Press, 2001： 1726-1734.
[3]
ATHURALIYA S, LOW S H, LI V H, et al. REM: Active queue management ［J］. IEEE Network Magazine, 2001, 15(3): 48-53.
[4]
KUNNIYUR S, SRIKANT R. An Adaptive Virtual Queue (AVQ) algorithm for active queue management ［J］. IEEE/ACM Transactions on Networking， 2004， 12(2): 286-299.
WANG JUN, SONG MIN, YANG HOUJUN. Rate-based active queue management for congestion control over wired and wireless links ［C］// First International Conference on Communications and Networking. Washington, DC: IEEE Computer Society, 2006： 1-6.
[8]
SUN JINSHENG, ZUKERMAN M. RaQ: A robust active queue management scheme based on rate and queue length ［J］.Computer Communications，2007，30(8): 1731-1741.
2012, Vol. 32 
