Adaptive spatial-subcarrier trellis coded MQAM and power optimization for OFDM transmission

Kai Kit Wong, Sai Kit Lai, R. S K Cheng, Khaled Letaief, R. D. Murch

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Recently, space-time coding or coded modulation has demonstrated that significant increases in system capacity and performance can be achieved by incorporating multiple antennas at the transmitter and (optional) multiple antennas at the receiver. In this paper, we propose an adaptive spatial-subcarrier trellis coded modulation using MQAM for orthogonal frequency division multiplexing (OFDM) transmission by using instantaneous channel state information and employing multiple antennas at both the transmitter and the receiver. In particular, our objective is to minimize the total transmit power required for each OFDM transmission, by optimizing the power allocation, code rate and modulation scheme in each spatial-subcarrier channel, while maintaining a given data rate and bit error probability. To illustrate the potential of our proposed system, Monte Carlo simulation results are provided.

Original languageEnglish
Pages (from-to)2049-2053
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume3
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

Multiple Antennas
Orthogonal Frequency Division multiplexing (OFDM)
Orthogonal frequency division multiplexing
Modulation
Antennas
Transmitter
Optimization
Transmitters
Receiver
Channel state information
Power Allocation
Channel State Information
Error Probability
Instantaneous
Monte Carlo Simulation
Coding
Space-time
Minimise

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Adaptive spatial-subcarrier trellis coded MQAM and power optimization for OFDM transmission. / Wong, Kai Kit; Lai, Sai Kit; Cheng, R. S K; Letaief, Khaled; Murch, R. D.

In: IEEE Vehicular Technology Conference, Vol. 3, 2000, p. 2049-2053.

Research output: Contribution to journalArticle

Wong, Kai Kit ; Lai, Sai Kit ; Cheng, R. S K ; Letaief, Khaled ; Murch, R. D. / Adaptive spatial-subcarrier trellis coded MQAM and power optimization for OFDM transmission. In: IEEE Vehicular Technology Conference. 2000 ; Vol. 3. pp. 2049-2053.
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