Book contents
- Frontmatter
- Contents
- Preface
- Acknowledgments
- 1 History
- 2 Notational and mathematical preliminaries
- 3 Probability and statistics
- 4 Wireless communications fundamentals
- 5 Simple channels
- 6 Antenna arrays
- 7 Angle-of-arrival estimation
- 8 MIMO channel
- 9 Spatially adaptive receivers
- 10 Dispersive and doubly dispersive channels
- 11 Space-time coding
- 12 2 × 2 Network
- 13 Cellular networks
- 14 Ad hoc networks
- 15 Medium-access-control protocols
- 16 Cognitive radios
- 17 Multiple-antenna acquisition and synchronization
- 18 Practical issues
- References
- Index
11 - Space-time coding
Published online by Cambridge University Press: 05 May 2013
- Frontmatter
- Contents
- Preface
- Acknowledgments
- 1 History
- 2 Notational and mathematical preliminaries
- 3 Probability and statistics
- 4 Wireless communications fundamentals
- 5 Simple channels
- 6 Antenna arrays
- 7 Angle-of-arrival estimation
- 8 MIMO channel
- 9 Spatially adaptive receivers
- 10 Dispersive and doubly dispersive channels
- 11 Space-time coding
- 12 2 × 2 Network
- 13 Cellular networks
- 14 Ad hoc networks
- 15 Medium-access-control protocols
- 16 Cognitive radios
- 17 Multiple-antenna acquisition and synchronization
- 18 Practical issues
- References
- Index
Summary
As is true for single-input single-output (SISO) communication links, there are many approaches for coding multiple-input multiple-output (MIMO) systems in an attempt to approach the channel capacity. Many of the space-time coding approaches have analogs in the SISO regime. The multiple antennas of MIMO systems enable spatial diversity, increased data rates, and interference suppression. In general, there are trades in these characteristics, depending upon the coding and receiver approach. One of the most important trade-offs in this regard is the trade-off between data rate and diversity whereby the data communication rate is reduced to improve probability of error or outage. That is to say, a fraction of the data rate is sacrificed to improve robustness.
There have been numerous contributions in the field of space-time coding. The major contributions include References [8, 99, 307, 305, 306, 361, 362, 314, 57, 58, 292, 86, 207, 166, 119, 87, 222, 270, 42, 43, 269, 226, 196]. Of particular note are Reference [8] which introduced what is now known as the Alamouti code, a simple and elegant space-time code for systems with two transmitter antennas, Reference [307] which introduced systematic methods to evaluate space-time codes, and Reference [361] which analyzed the fundamental trade-offs between diversity and rate in multiantenna systems.
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- Information
- Adaptive Wireless CommunicationsMIMO Channels and Networks, pp. 365 - 391Publisher: Cambridge University PressPrint publication year: 2013
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