Overlapping Impacts and Resource Coodination for High-density Wireless Communication

IEEE eXpress Conference Publishing
Publication Type:
Conference Proceeding
2009 IEEE-RIVF International Conference on Computing and Communication Technologies, 2009, pp. 180 - 186
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A high-density wireless environment could not avoid ceel/BSS (Basic Service Set) overlapping, which may cause Co-channel interference. Such interference makes it difficult to support QoS. It is desirable that BSSs can share a single frequency channel without interference-free for a business-sound wireless deployment. In this paper, we present a detailed analysis on OBSS co-existence and QoS, based on the context of 802.11 WiFi as an example. The uplink and downlink transmission are separated into two periods. The grouping assigments using coloring theory are carried out based on the topology to divide BSSs into groups and time span to avoid downlink collision.
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