Paper Info
Title
Partial transmit sequences for peak-to-average power ratio reduction in multiantenna OFDM
Abstract
The major drawback of orthogonal frequency-division multiplexing (OFDM) is its high peak-to-average power ratio (PAR), which gets even more substantial if a transmitter with multiple antennas is considered. To overcome this problem, in this paper, the partial transmit sequences (PTS) method--well known for PAR reduction in single antenna systems--is studied for multiantenna OFDM. A directed approach, recently introduced for the competing selected mapping (SLM) method, proves to be very powerful and able to utilize the potential of multiantenna systems. To apply directed PTS, various variants for providing a sufficiently large number of alternative signal superpositions (the candidate transmit signals) are discussed. Moreover, affording the same complexity, it is shown that directed PTS offers better performance than SLM. Via numerical simulations, it is pointed out that due to its moderate complexity but very good performance, directed or iterated PTS using combined weighting and temporal shifting is a very attractive candidate for PAR reduction in future multiantenna OFDM schemes.
Year
DOI
Venue
2008
10.1155/2008/325829
EURASIP J. Wireless Comm. and Networking
Keywords
Field
DocType
attractive candidate,peak-to-average power ratio reduction,good performance,multiantenna ofdm,future multiantenna ofdm scheme,alternative signal superpositions,iterated pts,multiantenna system,moderate complexity,better performance,par reduction
Transmitter,Weighting,Telecommunications,Power ratio,Computer science,Electronic engineering,Real-time computing,Multiplexing,Iterated function,Orthogonal frequency-division multiplexing
Journal
Volume
Issue
ISSN
2008,
1
1687-1499
Citations 
PageRank 
References 
14
0.73
16
Authors
2
Name
Order
Citations
PageRank
Christian Siegl19912.47
Robert F. H. Fischer255670.74