Coexistence of radio networks using Aloha

: In this paper we use an analytical model to study how two radio networks : a primary network and a secondary network can coexist within the same area. We use a very simple protocol, Aloha, for both radio networks, and tools borrowed from stochastic geometry to model the performance of our two networks. We show that the primary network and the secondary network can adapt their transmission parameters simultaneously to achieve the following goal : the primary network maintains its performance with a maximum and fixed degradation whereas the secondary network maximizes its transmission throughput. In practice this involves the primary network adapting its transmission power and the secondary network its transmission probability. We also study the gain in performance when the secondary network nodes only transmit when their receivers are at minimum distance from any transmitter nodes in the primary network (constrained distance deployment). We obtain the following result : when there is ...

• Type: Journal
• Year: 2010
• Where: WD
• Authors: Bartlomiej Blaszczyszyn, Paul Mühlethaler, Skander Banaouas
• Keywords: Minimum Distance, Primary Network, Secondary Network, WD 2010, Wireless Networks