Abstract
We present a novel adaptive transmission technique for MIMO systems with the aim to enhancing the spectral efficiency for a target error rate performance and transmit power. This adaptive method employs the condition number of the spatial correlation matrix as an indicator of the spatial selectivity of the MIMO channel. The distribution of the condition number is then used to identify the prevailing channel environment. Depending on the identified channel state, our adaptive algorithm chooses the MIMO transmission method, among spatial multiplexing, D-STTD, and beamforming, which maximizes the spectral efficiency. Performance results show significant gains in throughput and reduced error rate compared to conventional fixed transmission schemes.
Original language | English |
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Title of host publication | 2005 IEEE 61st Vehicular Technology Conference |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 3188-3192 |
Number of pages | 5 |
ISBN (Print) | 0-7803-8887-9 |
DOIs | |
Publication status | Published - 5 Dec 2005 |
Externally published | Yes |
Event | 61st Vehicular Technology Conference (VTC 2005-Spring) - Stockholm, Sweden, Stockholm, Sweden Duration: 30 May 2005 → 1 Jun 2005 Conference number: 61 |
Conference
Conference | 61st Vehicular Technology Conference (VTC 2005-Spring) |
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Abbreviated title | VTC 2005-Spring |
Country/Territory | Sweden |
City | Stockholm |
Period | 30/05/05 → 1/06/05 |
Keywords
- MIMO
- Adaptive algorithm
- Switches
- Error analysis
- Throughput
- Wireless communication
- Array signal processing
- Robustness
- Samarium
- Diversity methods