Transport throughput of secondary networks in spectrum sharing systems

—Spectrum sharing systems such as cognitive radio networks have drawn much attention recently due to their potential to resolve the conflict between increasing demand for spectrum and spectrum shortage. Such systems are typically composed of primary and secondary networks; the configuration of the latter depends on spectrum opportunity unexploited in the former. In this paper we explore the characteristics of the single hop transport throughput (STT) of the secondary network with outage constraints imposed on both networks. STT is a new metric that inherits the merits of both the traditional transport capacity and another popular metric, transmission capacity, incorporating transmission distance and outage probability into a uniform framework. We first derive the limit of STT, single hop transport capacity (STC), together with a practical upper bound for it. Then we investigate STT with secondary receivers randomly located in the field of interest. Three models regarding the sele...

• Type: Journal
• Year: 2011
• Where: INFOCOM
• Authors: Chengzhi Li, Huaiyu Dai
• Keywords: Communications, INFOCOM 2011, Secondary Networks, Single Hop Transport, Transport Capacity