Proof-of-Concept of bi-directional broadcast communication

Abstract:

From a theoretical perspective, the bi-directional broadcast communicationwhich follows from the network coding idea has been studied extensively in theliterature. However, despite the potential gain, not much practical work has beenrealized. In this thesis, we designed and implemented the traditional bi-directionalrelaying with 4-phases and the bi-directional communication with XOR networkcoding with 3-phases schemes using Wireless Open Access Research Platform(WARP) boards. Our experimental results show that when we have low packeterror rate, there is an approximately 30% throughput gain in the bi-directionalcommunication with network coding. However, when the link quality degrades,the benet of the bi-directional communication with network coding scheme be-comes less apparent and the traditional bi-directional relaying tends to performbetter. It is observed that the performance relates directly to the packet-error rateof the weakest node-relay link.