Paper Info
Title
On the comparison between conventional OFDM and MSE-OFDM systems
Abstract
A new multi-symbol encapsulated orthogonal frequency division multiplexing (MSE-OFDM) system is proposed, in which one cyclic prefix (CP) is used for a frame of multiple OFDM symbols. A system level comparison between a conventional OFDM and the proposed MSE-OFDM system is presented in this study. Two different realizations of the MSE-OFDM, i.e., CP-reduced and FFT size-reduced MSE-OFDM systems, are investigated for different system requirement. An analysis on the bandwidth efficiency, impact of synchronization errors on the system performance and peak to average power ratio (PAPR) of these systems is presented. Comparisons are made on two different assumptions, i.e., either keeping the symbol size of the MSE-OFDM (i.e., number of the subcarriers) unchanged to increase the bandwidth efficiency, or keeping the bandwidth efficiency unchanged (ratio between CP and useful data transmission time) for system robustness to synchronization errors and a lower peak-to-average power ratio. In the first case for CP-reduced MSE-OFDM, bandwidth efficiency is improved due to a reduced number of CPs inserted between OFDM symbols. For the latter case of FFT size-reduced MSE-OFDM, robustness to synchronization errors is improved considerably due to the smaller number of subcarriers. The proposed system is of particular interest for fixed wireless systems and digital subscriber loops (DSL). Large frame size can be used in these applications, due to the static nature of the channel conditions. Implementation complexity of the MSE-OFDM system is also discussed.
Year
DOI
Venue
2003
10.1109/GLOCOM.2003.1258198
GLOBECOM
Keywords
Field
DocType
bandwidth efficiency,frequency domain equalization,synchronization errors,ofdm modulation,bandwidth allocation,frequency-domain analysis,wireless systems,mse-ofdm systems,multi-symbol encapsulated orthogonal frequency division multiplexing,radio networks,digital subscriber loops,interchannel interference,cyclic prefix,peak to average power ratio,quantization noise,intersymbol interference,adjacent channel interference,frequency domain analysis,indexing terms,data transmission,system performance,digital subscriber loop
Intersymbol interference,Synchronization,Cyclic prefix,Bandwidth allocation,Digital subscriber line,Computer science,Real-time computing,Robustness (computer science),Spectral efficiency,Orthogonal frequency-division multiplexing
Conference
Volume
ISSN
ISBN
1
1930-529X
0-7803-7974-8
Citations 
PageRank 
References 
7
0.82
6
Authors
3
Name
Order
Citations
PageRank
Xianbin Wang12365223.86
Yiyan Wu21610180.83
Jean-Yves Chouinard319826.37