Design of performance analysis model for efficient random access protocol in CDMA based OFDMA-PHY system

The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005. Pub Date : 2005-07-11 DOI:10.1109/ICACT.2005.245868

Hyunhwa Seo, B. Ryu, J. Won, Choong-Ho Cho, Hyong-Woo Lee

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引用次数: 2

Abstract

Currently, IEEE 802.16a wireless MAN supports the contention based OFDMA-CDMA ranging subsystem for ranging operation (initial ranging, periodic ranging, bandwidth request). This system is basically similar to slotted ALOHA (K. Leonard and S.S. Lam, April 1975), but the frame size (code-slot/frame) allocated for random access or ranging request is relatively big and can be altered by the dynamic adjustment of downlink and uplink subframe size on the MAC frame of OFDMA-PHY system. In this paper, the design performance analytical model for correct interpretation of ranging subsystem is presented. Until now, the Internet traffic study have achieved wire net, but there is still a need for Internet traffic study that correctly reflects the radio environment. In this paper, the performance analysis result of this paper can perform the reference mark for random access protocol in OFDMA-CDMA ranging system. Traffic modeling can also be used to prepare the network resources in radio networks

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基于CDMA的OFDMA-PHY系统中高效随机接入协议的性能分析模型设计

目前，IEEE 802.16a无线城域网支持基于争用的OFDMA-CDMA测距子系统进行测距操作(初始测距、周期测距、带宽请求)。该系统基本类似于有槽ALOHA (K. Leonard and S.S. Lam, April 1975)，但分配给随机访问或测距请求的帧大小(码槽/帧)比较大，可以通过OFDMA-PHY系统MAC帧上的下行和上行子帧大小的动态调整来改变。本文提出了测距子系统正确判读的设计性能分析模型。到目前为止，互联网流量研究已经实现了有线网络，但仍然需要正确反映无线电环境的互联网流量研究。本文的性能分析结果可以为OFDMA-CDMA测距系统中的随机接入协议提供参考。通信量建模还可以用于无线网络中网络资源的准备

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.

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