Publication: Full-diversity space-frequency trellis codes designing method
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Issued Date
2013
Resource Type
File Type
application/pdf
Other identifier(s)
2-s2.0-84891090018
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
13th International Symposium on Communications and Information Technologies: Communication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013. (2013), p.105-110
Suggested Citation
Woradit K. Full-diversity space-frequency trellis codes designing method. 13th International Symposium on Communications and Information Technologies: Communication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013. (2013), p.105-110. doi:10.1109/ISCIT.2013.6645832 Retrieved from: https://hdl.handle.net/20.500.14740/6471
Author(s)
Abstract
This paper introduces a method to design space-frequency trellis codes for a system that combines space-time coding with orthogonal frequency division multiplexing (OFDM) to realize broad-band wireless communications. It has been pointed out in the literature that the frequency-selective fading, which usually occurs in such combined system, turns out to produce a beneficial effect on the error rate performance by providing the frequency diversity in addition to the spatial diversity. This enables space-frequency codes to exploit greater diversity than the space-time codes. However, exhaustive search for space-frequency trellis codes is impractical. The only existing heuristic design method has a drawback in the spectral efficiency, and in turn degrades the coding gain (energy efficiency,) which is also the primary purpose of space-frequency coding. We propose a practical method to design the space-frequency codes that exploit full diversity while maximizes the coding gain at a desired spectral efficiency. The simulation results show the superior error rate performance of the codes designed by the proposed method. © 2013 IEEE.
Subject(s)
Energy-efficient communications
Error rate performance
MIMO-OFDM
Space-frequency coding
Space-frequency trellis code
Space-time signal processing
Spectral efficiencies
Wireless communications
Communication
Energy efficiency
Information technology
MIMO systems
Signal processing
Trellis codes
Wireless telecommunication systems
Orthogonal frequency division multiplexing
Error rate performance
MIMO-OFDM
Space-frequency coding
Space-frequency trellis code
Space-time signal processing
Spectral efficiencies
Wireless communications
Communication
Energy efficiency
Information technology
MIMO systems
Signal processing
Trellis codes
Wireless telecommunication systems
Orthogonal frequency division multiplexing