White Papers

Adaptive Modulation Based MC-CDMA Systems for 4G Wireless Consumer Applications

Overview In this paper, various adaptive modulation based coded MC-CDMA systems have been studied in Rayleigh fast fading environment for the 4G wireless based consumer applications. The digital modulation schemes considered are M-ary QAM, M-ary PSK, M-ary CPM, M-ary MHPM, and GMSK with varying bit-duration-bandwidth product. The results of the adaptive systems clearly indicate that the dynamic switching of the modulation format can enhance the system capacity per given bandwidth substantially without sacrificing the expected BER performance. With adaptive modulation, the bit rate per given bandwidth is no longer a constant as in the case of fixed modulation based systems but varies dynamically according to the varying channel conditions.

Download White Paper

By downloading you agree to our Terms and Conditions. These include information regarding use of your personal data.

Publisher
Institute of Electrical and Electronics Engineers
File Format
PDF
Date Published
Jun 16, 2006
Format
White Papers
Topics
TDMA - CDMA, Mobile - Wireless Communications, Bandwidth Issues

Similiar White Papers

Advanced Design Methods of Doherty Amplifier for Wide Bandwidth, High Efficiency Base Station Power Amplifiers

Advanced Design Methods of Doherty Amplifier for Wide Bandwidth, High Efficiency Base Station Power Amplifiers

This paper has proposed advanced design methods of Doherty amplifier for high efficiency base station power amplifiers w

Publisher: Pohang University of Science And Technology  |  Tags: base station, cdma

Convergence Analysis of Iteratively Detected Time Hopping and DS-CDMA Ultrawide Bandwidth Systems by EXIT Charts

Convergence Analysis of Iteratively Detected Time Hopping and DS-CDMA Ultrawide Bandwidth Systems by EXIT Charts

This paper presents a novel analysis on the decoding convergence of Time Hopping (TH) and Direct Sequence (DS) Code-Divi

Publisher: Institute of Electrical and Electronics Engineers  |  Tags: cdma, time

Institute of Electrical and Electronics Engineers White Papers

Performance Evaluation for Remote Access VPNs on Windows Server 2003

Performance Evaluation for Remote Access VPNs on Windows Server 2003

A Virtual Private Network (VPN) can be defined as a way to provide secure communication between members of a group throu

Publisher: Institute of Electrical and Electronics Engineers  |  Tags: infrastructure, remote access, server, server 2003, ssl, vpn, windows server, windows server 2003, xp

Optimal Training Signals for MIMO OFDM Channel Estimation in the Presence of Frequency Offset and Phase Noise

Optimal Training Signals for MIMO OFDM Channel Estimation in the Presence of Frequency Offset and Phase Noise

The authors develop robust Mean-Square Error (MSE)-optimal training signal designs for multiple-input multiple-output or

Publisher: Institute of Electrical and Electronics Engineers

Combining RFID Technology and Business Intelligence for Supply Chain Optimization - Scenarios for Retail Logistics

Combining RFID Technology and Business Intelligence for Supply Chain Optimization - Scenarios for Retail Logistics

"Radio Frequency Identification" (RFID) and the related EPC standards promise to enable an automatic collection of suppl

Publisher: Institute of Electrical and Electronics Engineers  |  Tags: applications, data, management, rfid

A Load-Aware Routing Metric for Wireless Mesh Networks

A Load-Aware Routing Metric for Wireless Mesh Networks

Routing metrics play a critical role in Wireless Mesh Networks (WMNs). Several metrics have already been proposed but no

Publisher: Institute of Electrical and Electronics Engineers  |  Tags: network

Quality Assurance in High Volume Document Digitization: A Survey

Quality Assurance in High Volume Document Digitization: A Survey

Quality Assurance (QA) plays a critical role in high volume document digitization projects by making sure that the speci

Publisher: Institute of Electrical and Electronics Engineers  |  Tags: open source