Cross-Layer Optimization for WiMAX Systems

Author

Li Zhe ; Gong Ting

Author_Institution

Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China

fYear

2010

fDate

23-25 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

Cross-Layer design for WiMAX Systems can realize the highest usage of network resources and manage quality of service (QoS) guarantees. We present a Cross-Layer design that involves the transport layer, the data link layer and the physical layer to optimize the WiMAX resource scheduling mechanism. At the same time, we obtain the optimum number of the maximum retransmission attempts in Hybrid Automatic Repeat reQuest (HARQ) protocols ,which maximizes the spectral efficiency while maintaining the required performance such as delay and PER. Then simulation proves in physical layer the adaptive modulation and coding (AMC) used in conjunction with HARQ is the most suitable scheme for WiMAX Systems.

Keywords

WiMax; adaptive codes; adaptive modulation; automatic repeat request; protocols; quality of service; HARQ; WiMAX resource scheduling mechanism; adaptive modulation and coding; cross-layer optimization; data link layer; hybrid automatic repeat request protocols; maximum retransmission attempts; physical layer; quality of service; transport layer; Automatic repeat request; Delay; Physical layer; Protocols; Quality of service; WiMAX;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-3708-5

Electronic_ISBN

978-1-4244-3709-2

Type

conf

DOI

10.1109/WICOM.2010.5601185

Filename

5601185