Self-Organized and Distributed Radio Resource Management Scheme for CSMA/CA based IEEE 802.11 WLAN
With the high density deployment of CSMA/CA based IEEE 802.11 WLAN, the problem of inter-cell co-channel interference mitigation arises. However, due to the limitation of DCF in handling hidden terminal and exposed terminal, such cochannel interference in a multi-cell configuration has been a challenging problem so far for decades. This paper proposes a novel way to proactively release/adjust radio resource partitioning, which is named as Relinquish Inter-Frame Spacing (RIFS). The RIFS action is initiated by the resource-rich AP based on its own QoS measurement results. As a consequence, the resource-poor APs in the same neighborhood may benefit from such RIFS action and win the contention of resources. We also proposed a reference design of self-organized interference mitigation solution based on the proactive RIFS scheme. Our simulation results show that the self-organized interference mitigation solution with proactive RIFS can effectively mitigate the interference effects and get the resource shared among different APs much more evenly.
802.11 Wireless LAN CSMA/CA Co-Channel Interference Interference Mitigation Radio Resource Management Relinquish Inter-Frame Spacing (RIFS)
He Xiaoben
Research, Technology and Platforms Nokia Siemens Networks Helsinki, Finland
国际会议
上海
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）