Adaptive Modulation over Nakagami Fading Channels (1998)

Content Provider	CiteSeerX
Author	Alouini, Mohamed-Slim Goldsmith, Andrea
Abstract	We first study the capacity of Nakagami multipath fading (NMF) channels with an average power constraint for three power and rate adaptation policies. We obtain closed-form solutions for NMF channel capacity for each power and rate adaptation strategy. Results show that rate adaptation is the key to increasing link spectral efficiency. We analyze therefore the performance of constant-power variable-rate M-QAM schemes over NMF channels. We obtain closed-form expressions for the outage probability, spectral efficiency and average bit-error-rate (BER) assuming perfect channel estimation and negligible time delay. We also analyze the impact of time delay on the BER of adaptive M-QAM. Keywords Link Spectral Efficiency, Adaptive Modulation Techniques, and Nakagami Fading. I. Introduction The radio spectrum available for wireless services is extremely scarce, while demand for these services is growing at a rapid pace [1]. Hence spectral efficiency is of primary concern in the design of fut...
File Format	PDF
Publisher Date	1998-01-01
Access Restriction	Open
Subject Keyword	Average Bit-error-rate Rapid Pace Outage Probability Rate Adaptation Strategy Adaptive Modulation Nmf Channel Closed-form Solution Keywords Link Spectral Efficiency Negligible Time Delay Adaptive M-qam Radio Spectrum Closed-form Expression Nakagami Fading Channel Perfect Channel Estimation Nmf Channel Capacity Time Delay Constant-power Variable-rate M-qam Scheme Rate Adaptation Spectral Efficiency Nakagami Multipath Fading Hence Spectral Efficiency Average Power Constraint Wireless Service Adaptive Modulation Technique Rate Adaptation Policy Nakagami Fading Link Spectral Efficiency Primary Concern
Content Type	Text