ISWCS 2005, 2nd International Symposium on Wireless Communication Systems, September 5-7, 2005, Siena, Italy
A novel multi-user diversity scheme for OFDMA (Orthogonal Frequency Division Multiplexing Access) is described which alleviates the need of feedback and provides substantial improvements in non-cooperative environments. The algorithm exploits the reciprocity of the channel and enables a user to send reliably data at a prescribed rate knowing only its channel. Moreover, analytical expressions of the cell spectral efficiency are derived in the asymptotic regime (high number of carriers) for two filter types: matched filter and optimum filter. Discussions are also provided for various channel models.
Type:
Conférence
City:
Siena
Date:
2005-09-05
Department:
Systèmes de Communication
Eurecom Ref:
1696
Copyright:
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