Title
Performance analysis of a rate-adaptive dual-branch switched diversity system
Abstract
In this letter, a performance analysis of a dual-branch switched diversity system operating on statistically independent and identically distributed Nakagami-m flat-fading channels is presented. An adaptive coded modulation (ACM) scheme is employed to increase the spectral efficiency of the system. The ACM scheme consists of a set of multidimensional trellis codes originally designed for additive white Gaussian noise channels, where the codes are based on quadrature amplitude modulation (QAM) signal constellations of varying size. The performance is evaluated by assuming perfect channel knowledge at both transmitter and receiver and instantaneous feedback of channel state information, conveyed from the receiver to the transmitter on an error-free feedback channel. The optimal switching threshold of the switched diversity combiner, maximizing the average spectral efficiency, is identified for spatially uncorrelated antenna branches.
Year
DOI
Venue
2008
10.1109/TCOMM.2008.060195
Communications, IEEE Transactions
Keywords
Field
DocType
AWGN channels,Nakagami channels,adaptive codes,adaptive modulation,channel coding,diversity reception,quadrature amplitude modulation,rate distortion theory,trellis coded modulation,ACM scheme,Nakagami-m flat-fading channels,QAM signal constellations,adaptive coded modulation,additive white Gaussian noise channels,channel state information,dual-branch switched diversity combiner system,error-free feedback channel,multidimensional trellis codes,performance analysis,quadrature amplitude modulation,rate-adaptive system,spatially uncorrelated antenna branches,spectral efficiency,Switched diversity,adaptive modulation
Link adaptation,Trellis modulation,Transmitter,Quadrature amplitude modulation,Fading,Computer science,Control theory,QAM,Electronic engineering,Spectral efficiency,Channel state information
Journal
Volume
Issue
ISSN
56
12
0090-6778
Citations 
PageRank 
References 
1
0.36
13
Authors
2
Name
Order
Citations
PageRank
Bengt Holter151.18
Geir E. Øien238143.38