A modified IEEE 802.11 MAC for optimizing broadcasting in wireless audio networks

Chousidis, Christos ORCID: https://orcid.org/0000-0003-3762-8208, Ioana, Pisica and Zhengwen, Huang (2019) A modified IEEE 802.11 MAC for optimizing broadcasting in wireless audio networks. Journal of Network and Systems Management, 28 (1). pp. 58-80. ISSN 1064-7570

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Chousidis_Ioana_and_Zhengwen_JNSM_2019_A_modified_IEEE_802.11_MAC_for_optimizing_broadcasting_in_wireless_audio_networks.pdf - Accepted Version
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Abstract

The use of network infrastructures to replace conventional professional audio systems is a rapidly increasing field which is expected to play an important role within the professional audio industry. Currently, the market is dominated by numerous proprietary protocols which does not allowing interoperability and does not promote the evolution on this sector. Recent standardization actions are intending to resolve this issue excluding however the use of wireless networks. Existing wireless networking technologies are considered unsuitable for supporting real-time audio networks, not because of lack of bandwidth but due to their inefficient congestion control mechanisms in broadcasting. In this paper, we propose an amendment of the IEEE 802.11 MAC that improves the performance of the standard when is used for real-time audio data delivery. The proposed amendment is based on two innovative ideas. First, it provides a protection mechanism for broadcasting and second, replaces the classic congestion control mechanism, based in random backoff, with an alternative traffic adaptive algorithm, designed to minimize collisions. The proposed MAC is able to operate as an alternative mode, allowing regular Wi-Fi networks to coexist and interoperate efficiently with audio networks, with the last ones being able to be deployed over existing wireless network infrastructures.

Item Type: Article
Additional Information: This is a post-peer-review, pre-copyedit version of an article published in the Journal of Network and Systems Management. The final authenticated version is available online at: https://dx.doi.org/10.1007/s10922-019-09501-3
Subjects: Computing > Systems > Computer networking
Construction and engineering > Electrical and electronic engineering
Construction and engineering > Sound engineering
Depositing User: Christos Chousidis
Date Deposited: 13 Jun 2019 11:45
Last Modified: 28 Jan 2020 11:10
URI: http://repository.uwl.ac.uk/id/eprint/6133

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