Layered Video Multicast with QoS-Guaranteed and Energy-Aware Scheduling Mechanisms in IEEE 802.16 Networks

• Main Authors: Tzu-Chia Wang, 王子嘉
• Other Authors: Chih-Yung Chang
• Format: Others
• Language: en_US
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/94rcah

博士 === 淡江大學 === 資訊工程學系博士班 === 103 === IEEE 802.16 networks characterized by long-haul and high-speed communications have attracted researchers to develop multicast schemes for wireless video services, such as mobile IPTV. Multicasting can save the bandwidth consumption and thus gains the multicast advantages. However, all MSs should cooperate with each other to wake up simultaneously for receiving the multicast data. This might reduce the power saving quality of each MS and violate the delay constraint of some MSs because all MSs in a multicast group should apply a common modulation. Therefore, we proposes the efficient QoS-guaranteed and energy-aware multicasting mechanism to maximize the multicast advantages and guarantee the delay constraint of each MS while the power-saving requirements of MSs are meet. Simulation results reveal that the proposed multicast mechanism outperforms existing works in terms of the user satisfactory and network throughput.