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The recent development on network coding techniques has attracted much attention, with their demonstrated potentials in improving network capacity and reliability, particularly in wireless networks with broadcast capability. While most studies have focused on designing efficient algorithms and protocols to exploit the benefits at lower layers, i.e., the link layer and network layer, we reveal the...
Based on considering the CODEC frame duration, this paper proposes a superior uplink scheduling algorithm that can efficiently support multiple DTX VoIP CODECs over M-WiMAX, and be able to facilitate the uplink resource wastes during silence period and optimize the system VoIP capacity. The BS uplink resource allocation procedure is planned and adapted according to the reserved bit in the Bandwidth...
This paper proposes an efficient uplink scheduling algorithm that can perfectly support various VoIP CODECs with VAD/DTX/CNG in M-WiMAX considering the variants of silence duration between different voice users, solving the problems of uplink resources wastes and overwhelmingly large overhead that caused during silence period. In our proposed algorithm, efficient schemes is proposed to implement the...
WiMax mesh networks based on IEEE 802.16 standard have promised to deliver high data rates over large areas and to be deployed easily. Optimum routing and scheduling of flows can do favor for capacity enlargement. The objective of this paper is to provide a routing-construction method with larger scale applicability and a concurrent transmission scheduling strategy to improve the performance during...
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