A Novel Cross-Layer Design with QoS Guarantee for WiMAX System

被引：0
|
作者：
Xie, Bing [1 ]
Zhou, Wenan [1 ]
Zeng, Juling [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, PCN & CAD Ctr, Beijing 100876, Peoples R China
来源：
2008 3RD INTERNATIONAL CONFERENCE ON PERVASIVE COMPUTING AND APPLICATIONS, VOLS 1 AND 2 | 2008年
关键词：
Cross-Layer; OFDMA; Admission Control; Mutiuser Diversity;
D O I：
暂无
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
WiMAX standard defines the QoS (Quality of Service) signaling framework and different types of service flows, but the actual QoS guarantee algorithms are open to developers. Admission control in medium access control (MAC) layer without physical (PHY) lawyer information has a low efficiency. In this paper to provide the QoS guarantee, we propose a novel cross-layer QoS design which consisting of admission control and subchannel assignment, taking physical layer channel information into account. The occupation of physical resource is an important feedback for the admission controller and we provide simulation results to demonstrate that our algorithms can bring higher spectral efficiency of the system than the no cross-layer method.
引用
收藏
页码：837 / 842
页数：6
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