Fiber Aided Wireless Network Architecture

Siddharth Ray, Muriel Medard, Lizhong Zheng
2011 IEEE Journal on Selected Areas in Communications  
We introduce the concept of a ber aided wireless network architecture (FAWNA), which allows high-speed mobile connectivity by leveraging the speed of optical networks. Specically, we consider a single-input, multiple-output (SIMO) FAWNA, which consists of a SIMO wireless channel interfaced with an optical ber channel through wireless-optical interfaces. We propose a design where the received wireless signal at each interface is sampled and quantized before being sent over the ber. The
more » ... ty of our scheme approaches the capacity of the architecture, exponentially with ber capacity. We also show that for a given ber capacity, there is an optimal operating wireless bandwidth and number of interfaces. We show that the optimal way to divide the ber capacity among the interfaces is to ensure that each interface gets enough rate so that its noise is dominated by front end noise rather than by quantizer distortion. We also show that rather than dynamically change rate allocation based on channel state, a less complex, xed rate allocation scheme can be adopted with very small loss in performance.
doi:10.1109/jsac.2011.110615 fatcat:nzuf4mayorattdnzs4bxefa2ki