NDLI: Distributed Space-Time Transmission with CPM

Content Provider	IEEE Xplore Digital Library
Author	Silvester, A.-M. Lampe, L. Schober, R.
Copyright Year	2007
Description	Author affiliation: Univ. of British Columbia, Vancouver (Silvester, A.-M.; Lampe, L.; Schober, R.)
Abstract	In this paper, a class of distributed space-time (ST) codes for continuous-phase modulation (CPM) is introduced. The distributed ST codes are designed to operate in wireless networks containing a large set of nodes N , of which only a small a priori unknown subset S sub N will be active at any time. Under the proposed scheme, a relay node transmits a signal which is the product of a diagonal block-based ST (DBST) code (optimized specifically for ST-CPM transmission) and a signature vector of length Nc uniquely assigned to each node in the network. Two efficient methods are presented for the design and optimization of signature vector sets. If a properly designed signature vector set is employed it is shown that a diversity d = $min\{N_{s}$ $,N_{c}\}$ can be obtained, where $N_{s}$ is the number of active users. Further, the decoding complexity of the proposed scheme is shown to be independent of the number of active relay nodes. Through the combination of DBST-CPM codes and signature vector sets the proposed distributed DBST-CPM codes allow for power-efficient cooperative transmission, and low complexity coherent and noncoherent receiver implementations.
Starting Page	748
Ending Page	753
File Size	193443
Page Count	6
File Format	PDF
ISBN	9781424410422
DOI	10.1109/GLOCOM.2007.145
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Diversity reception Vectors Modulation coding Decoding Wireless networks Transmitting antennas Bandwidth Design optimization Performance gain
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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