Capacity of Hybrid Cellular-Ad Hoc Data Networks

—In this paper, towards improving spatial reuse in a cellular network, we consider augmenting it with wireless ad hoc connectivity. The coverage area of each base-station is reduced and the users that are within the area relay traffic to nodes outside the area; these users further relay data to more distant users within the cell. The resulting network is referred to as a hybrid network. While this approach can result in shorter range higher-rate links and improved spatial reuse which, together favor a capacity increase, it relies on multi-hop forwarding which is detrimental to the overall capacity. Our objective in this work is to evaluate the impact of these conflicting factors on the capacity of the hybrid network and determine if this capacity is higher than that of the original cellular network. We formally define the capacity of the network as the maximum possible downlink throughput under the conditions of max-min fairness. We analytically compute the capacity of a two-dimen...

• Type: Conference
• Year: 2008
• Where: INFOCOM
• Authors: Lap Kong Law, Srikanth V. Krishnamurthy, Michalis Faloutsos
• Keywords: Cellular Network, Communications, Hybrid Network, INFOCOM 2008, Spatial Reuse