Date Added: Apr 2010
In this paper, the authors consider a wireless communication network for both local nodes residing in densely populated hotspots and nomadic nodes roaming in a large area. Wireless Local Area Networks (WLANs) are deployed in the hotspots, while a Delay/disruption Tolerant Network (DTN) provides services to nomadic nodes in the large area with low node density. They investigate the radio resource allocation for a DTN/WLAN integrated network, and propose a DTN-Friendly Medium Access Control (DFMAC) scheme for the hotspots supporting voice/data services. Analytical models are established to characterize the interactions between a DTN and WLANs under the proposed DFMAC.