Two-Step Fair Scheduling of Continuous Media Streams over Error-Prone Wireless Channels

Soohyun OH  Jin Wook LEE  Taejoon PARK  Tae-Chang JO  

IEICE TRANSACTIONS on Communications   Vol.E92-B   No.6   pp.2254-2258
Publication Date: 2009/06/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.2254
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Switching for Mobile Communications
two-step fair scheduling,  wireless cellular networks,  

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In wireless cellular networks, streaming of continuous media (with strict QoS requirements) over wireless links is challenging due to their inherent unreliability characterized by location-dependent, bursty errors. To address this challenge, we present a two-step scheduling algorithm for a base station to provide streaming of continuous media to wireless clients over the error-prone wireless links. The proposed algorithm is capable of minimizing the packet loss rate of individual clients in the presence of error bursts, by transmitting packets in the round-robin manner and also adopting a mechanism for channel prediction and swapping.