Time Slot Partitioning and Random Data Hopping for TDD Based Multihop Wireless Networks

Abstract— A multihop ad hoc wireless network with an interference avoidance model is analyzed for a time division duplex (TDD) air-interface. In accordance with the non-interference protocol, an exclusion region is defined around every communicating receiver wherein no other node except the desired transmitter can transmit. In a network comprising finite coverage area, the position of the communicating nodes determine the number of simultaneous communicating pairs and hence the overall system throughput. A novel random data hopping technique for a time slot (TS) partitioned system is proposed in this paper. In this technique, the number of TS(s) in the TDMA frame is increased by reducing the duration of each TS. Then, the time slots over which the transmission pairs of the end-to-end link communicate are randomly assigned over the time frame. This randomness in the selection of communicating pairs, in a system with high number of TS(s) per frame, results in an increased system thro...

• Type: Conference
• Year: 2007
• Where: VTC
• Authors: Hrishikesh Venkataraman, Abdurazak Mudesir, Sinan Sinanovic, Harald Haas
• Keywords: Ad Hoc Wireless Network, Simultaneous Communicating Pairs, Time Slot, VTC 2007