Differential Modulated Pilot Symbol Assisted Adaptive OFDM for Reducing the MLI with Predicted FBI

URI http://harp.lib.hiroshima-u.ac.jp/hiroshima-cu/metadata/4063
File
Title
Differential Modulated Pilot Symbol Assisted Adaptive OFDM for Reducing the MLI with Predicted FBI
Author
氏名 AHN Chang-Jun
ヨミ アン チャンジュン
別名 安 昌俊
氏名 TAKAHASHI Satoshi
ヨミ タカハシ サトシ
別名 高橋 賢
氏名 HARADA Hiroshi
ヨミ ハラダ ヒロシ
別名 原田 博司
Subject
AMS/OFDM
MLI
FBI
Abstract

In an AMS/OFDM system, base station is in control of the modulation level of each subcarriers, and then, adaptive modulated packet is transmitted from the base station to the mobile station. In this case, the mobile station is required the modulation level information (MLI) to demodulate the received packet. The MLI is generally transmitted as a data symbol, therefore, the throughput is degraded. Moreover, it is necessary to have some transmission delay times and the processing time to make an adaptive modulation command (AMC) using feedback information (FBI). With the FBI delay and processing time, the system performance might be degraded. To reduce these problems, in this paper, we propose a differential modulated pilot symbol assisted adaptive OFDM for reducing the MLI with predicted FBI.

Description Peer Reviewed
Journal Title
IEICE TRANSACTIONS on Communications
Volume
E88-B
Issue
2
Spage
436
Epage
442
Published Date
2005-02-01
Publisher
電子情報通信学会(IEICE)
ISSN
0916-8516
NCID
AA10826261
Language
eng
NIIType
Journal Article
Text Version
出版社版
Rights
copyright©2005 IEICE
Relation URL
Old URI
Set
hiroshima-cu