Wireless multichannel bus communication using CDMA coding for single frequency radios

Abstract

Here, we present our work on a modified version of the novel scheme named Wired-CDMA, in order to be used in wireless environments. This modified scheme allows a group of radios to communicate with each other as if they have formed a multiple access digital bus. Although the proposed scheme is a multiple access scheme, all the radios are identical and operate at the same frequency, without any time restriction. In order to achieve such a goal, a specific group of codes, named Optical Orthogonal Codes, are used. Further, a hardware implementation of the proposed scheme is presented. We show that the scheme can provide simple and inexpensive medium access for WSNs.