ISSN : 1796-2021
Volume : 4    Issue : 3    Date : April 2009

Exploiting Cooperation for Performance Enhancement and High Data Rates
Tatiana K. Madsen, Qi Zhang, Frank Fitzek, and Marcos Katz
Page(s): 193-202
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In this paper, we discuss an approach to increase wireless bandwidth utilization based on
cooperative network architecture, referred to as Cellular Controlled Peer-to-Peer (CCP2P)
communication. This approach goes beyond the concepts used in composite networks, focused
mainly on coverage extension and data relaying. In CCP2P networks, besides being connected to
an ”outside world” using cellular links, a group of terminals in close proximity form a cooperative
cluster. Using peer-to-peer connections CCP2P has the potential to overcome many important
limitations of the cellular networks and offer higher data rates and better Quality of Service. Four
practically relevant scenarios of CCP2P applications are presented as illustrative examples and
discussed in detail. This paper shows that performance gain can be achieved only by cooperative
behavior of terminals in the cluster. The importance of rules of cooperation for CCP2P
communication is underlined and a discussion on their realization in cooperative networks is

Index Terms
cooperation, network architecture, bandwidth utilization, efficiency