A new multi-carrier CDMA/TDD transmission scheme based on cyclic extended spread code for 4th generation mobile communication system

1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338) Pub Date : 1997-12-17 DOI:10.1109/ICPWC.1997.655533

H. Harada, R. Prasad

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引用次数: 5

Abstract

This paper proposes a fiber-optic and OFDM radio based mobile advanced communication system; which is called the FORMATION system. In this system, all microcellular base stations are connected with a fiber-optic bus link by using an optical coupler; and each base station and control station have only an electrical to optic converter, an optic to electrical converter and an OFDM transmitter and receiver. To manage the frequency band efficiently in one cellular, we communicate with other users by using MC-CDMA/TDD (multi-carrier code division multiple access/time division duplex). Therefore we propose a new MC-CDMA/TDD system that is suitable for the FORMATION system. The proposed MC-CDMA/TDD system uses cyclic extended code division multiplex and it is very easy to synchronize the code and FFT start point at the OFDM receiver. This paper explains the basic concept of the FORMATION system and the new MC-CDMA/TDD system, and evaluates the basic BER performance of proposed MC-CDMA system.

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一种基于循环扩展码的第四代移动通信系统多载波CDMA/TDD传输新方案

提出了一种基于光纤和OFDM无线电的移动高级通信系统;这就是所谓的FORMATION系统。在该系统中，所有微蜂窝基站通过使用光耦合器与光纤总线链路连接;每个基站和控制站仅具有一个光电转换器、一个光电转换器和一个OFDM发射机和接收机。为了有效地管理一个蜂窝的频带，我们采用MC-CDMA/TDD(多载波码分多址/时分双工)与其他用户通信。因此，我们提出了一种适用于FORMATION系统的新型MC-CDMA/TDD系统。所提出的MC-CDMA/TDD系统采用循环扩展码分复用，在OFDM接收端很容易实现码与FFT起始点的同步。本文阐述了FORMATION系统和新型MC-CDMA/TDD系统的基本概念，并对所提出的MC-CDMA系统的基本误码率性能进行了评价。

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1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338)

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