Abstract
This paper presents a new spreading matrix for Block Spread OFDM (BSOFDM) to improve the performance of the system by increasing the correlation between the symbols. This is achieved by rotating the modulation scheme used at the transmission, say QPSK, into a higher order modulation scheme, for example 16QAM. By this the correlation between the transmitted symbols is increased. The advantage of this new spreading matrix overmore traditional spreading matrices is its flexibility in achieving different higher order modulation schemes during transmission depending on the angle a. This is compared to other spreading matrices in frequency selective channel environment.
Original language | English |
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Title of host publication | 2006 IEEE Singapore International Conference on Communication Systems, ICCS 2006 |
DOIs | |
Publication status | Published - 2006 |
Event | 10th IEEE Singapore International Conference on Communications Systems, ICCS 2006 - Singapore, Singapore Duration: 30 Oct 2006 → 1 Nov 2006 |
Other
Other | 10th IEEE Singapore International Conference on Communications Systems, ICCS 2006 |
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Country/Territory | Singapore |
City | Singapore |
Period | 30/10/06 → 1/11/06 |
Keywords
- BSOFDM
- Frequency selective channel
- Spreading matrix