北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (3): 113-116.doi: 10.13190/jbupt.200703.113.gaoyj

• 研究报告 • 上一篇    下一篇

一种基于OFDMA技术的MAC协议

高有军 田辉 孙雷 张平   

  1. 北京邮电大学,电信工程学院,无线新技术研究所 北京邮电大学,电信工程学院,无线新技术研究所 北京邮电大学,电信工程学院,无线新技术研究所 北京邮电大学,电信工程学院,无线新技术研究所
  • 收稿日期:2006-07-17 修回日期:2006-11-13 出版日期:2007-06-30 发布日期:2007-06-30
  • 通讯作者: 高有军

A MAC Protocol Based on OFDMA Technique

GAO You-jun, TIAN Hui, SUN Lei   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2006-07-17 Revised:2006-11-13 Online:2007-06-30 Published:2007-06-30
  • Contact: GAO You-jun

摘要:

提出了适用于OFDMA技术的MAC层接入协议——中心控制式微时隙分组预留多址协议(CMPRMA)。该协议把系统提供的无线资源从时域和频域划分为微时频块作为信息传输的基本单元,以基站为中心对系统用于用户接入和数据传输的无线资源进行动态控制。该协议不仅继承了用于TDMA系统的MPRAM协议很好支持实时业务的特点,而且能够为数据业务提供资源预留机制,支持多用户多业务的有效传输。

关键词: OFDMA, 中心控制式微时隙分组预留多址协议, 微时频块

Abstract:

The MAC protocol applied for OFDMA system — Centralized Mini-slot Packet Reservation Multiple Access (CMPRMA) protocol is proposed. The proposed protocol divides the radio resources into mini-time-frequency blocks, which are the basic transmission units. As the control center, Base station controls the resource allocation dynamically for users’ access and data transmission. It not only inherits the advantages of MPRMA prototype, which can support real-time traffic well, but also can supply the resource reservation scheme for data traffic,and can support efficient transmission for multi-users and multi-traffics.

Key words: OFDMA, Centralized Mini-slot Packet Reservation Multiple Access protocol, mini-time-frequency block

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