GRATIS: Free Bits in the Network

Conventional Signal-to-Noise (SNR) based rate adaptation algorithms in wireless networks provide limited flexibility in terms of the maximum achievable data rates. Transmitters are often forced to step down to a lower data rate due to the lack of an intermediate rate despite having a higher SNR than the minimum required for the lower rate. In this paper, the authors propose a novel scheme that provides increased flexibility to the MAC layer by providing multiple step down rates, while utilizing client channel diversity to transmit independent packets to multiple users: This is an example of simultaneous transmission.

Provided by: University of Colorado Topic: Software Date Added: Sep 2010 Format: PDF

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