Distributed Medium Access Control in Pulse-Based Time-Hopping UWB Wireless Networks

— This paper investigates distributed medium access control (MAC) to achieve rate guarantee in pulse-based timehopping ultra-wideband (UWB) wireless networks, where the inherent spread spectrum supports simultaneous transmissions. In specific, we propose a transmission frame structure for the distributed MAC tailoring to the UWB characteristics, and develop a novel control message exchange procedure. Furthermore, we propose an effective distributed resource allocation algorithm to achieve high efficiency. The proposed distributed MAC can solve the near-sender-blocking problem and alleviate the negative effect of long acquisition time in UWB transmissions. Extensive simulations demonstrate the superior performance of the distributed MAC. Keywords – Ultra-wideband (UWB), medium access control (MAC), resource allocation.

• Type: Conference
• Year: 2006
• Where: GLOBECOM
• Authors: Hai Jiang, Kuang-Hao Liu, Weihua Zhuang, Xuemin Shen
• Keywords: Distributed Resource Allocation, GLOBECOM 2006, Medium Access Control, Telecommunications , UWB Characteristics