J4 ›› 2011, Vol. 38 ›› Issue (5): 184-188.doi: 10.3969/j.issn.1001-2400.2011.05.030

• Original Articles • Previous Articles    

Improved cross-layer AQM algorithm in the mobile WiMAX

SONG Jianfeng;LI Jiandong;LI Hongyan   

  1. (State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China;
    Broadband Wireless Communications Lab., Xidian Univ., Xi'an  710071, China)
  • Received:2010-12-15 Online:2011-10-20 Published:2012-01-14
  • Contact: SONG Jianfeng E-mail:jfsong@mail.xidian.edu.cn

Abstract:

A cross-layer active queue management scheme in the mobile WiMAX is proposed, in which an active queue algorithm, CHOKe-CRL, is designed. The merits of the traditional CHOKe algorithm and the utilization at the link layer of TCP window variations are both used to enhance the packet drop property of the uplink nodes, which gives a smooth throughput and a good QoS assurance. Experiments show that the CHOKe-CRL algorithm can improve the performance of the uplink nodes under a certain condition.

Key words: active queue management, cross-layer design, mobile WiMAX, TCP

CLC Number: 

  • TN929.5