NDLI: New Recursive Space-Time Trellis Codes From General Differential Encoding

Content Provider	IEEE Xplore Digital Library
Author	Shengli Fu Haiquan Wang Xiang-Gen Xia
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., North Texas Univ., Denton, TX (Shengli Fu)
Abstract	In this paper, a recursive space-time trellis coding (RSTTC) from general differential encoding is proposed for multiple antenna systems, where general differential encoding is implemented separately from the space-time matrix modulation. The general differential encoding is achieved by introducing a new multiplication on a set of symbols (called trellis codewords) such that the corresponding RSTTC has its minimum error event length 3 or above and in the meantime it has the minimum number of states. The space-time matrix modulation is the mapping of the differentially encoded symbols to a set of space-time matrices (called modulation codewords). Due to the separation of differential encoding and space-time matrix modulation, more freedom on the design of modulation codewords (or a space-time code) exists, which may result in a larger diversity product (or determinant distance or product distance or coding advantage) than that the existing combined differential encoding and space-time matrix modulation can achieve in the concatenation with an outer binary channel encoder proposed by Schlegel and Grant. A new design of modulation codewords is then proposed for the RSTTC with larger diversity products than the existing schemes. Simulation results are finally presented to show that our new design significantly outperforms the existing schemes
Starting Page	606
Ending Page	610
File Size	249501
Page Count	5
File Format	PDF
ISBN	1424400678
DOI	10.1109/ITW2.2006.323706
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-22
Publisher Place	Uruguay
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Convolutional codes Antenna theory Conferences Space time codes Encoding Concatenated codes Block codes Modulation coding Iterative decoding Information theory
Content Type	Text
Resource Type	Article

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