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Enhancement of IEEE 802.11 in Handling Multiple Broadcasting Audio Data in Wireless ad-hoc Networks

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Although modern WiFi technology has enough bandwidth to handle multiple audio channels, the current 802.11 standard has numerous defects that prevent widespread adoption for professional live audio. By augmenting the MAC algorithm used in the standard, many of the inherent problems can be addressed. For example, the use of CTS-to-Self was modified in order to distribute in broadcasting mode, the time the network is occupied for each transmission. This reduces the number of backoff counts and dropped packets. An Exclusive Backoff Number Allocation algorithm was also added in order to decrease the probability of collision while maintaining fairness and limiting delay to an acceptable level. A simulation of the modified 802.11 MAC algorithm showed drastically improved performance.

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JAES Volume 61 Issue 4 pp. 165-173; April 2013
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AES - Audio Engineering Society