Device to device communication using software defined radios on a 4G Cellular Network

Abstract

The fourth generation mobile systems are being deployed all over the world to provide broadband mobile services at any place, anywhere and anytime. But, the number of mobile subscribers is still increasing and the need for higher end broadband internet services is also growing [1]. As a result, an increase in the number of subscribers implements profound changes in the way people, businesses and society interact for example social networking, public safety services and advertising. Therefore the proportion of mobile traffic transmitted over broadband wireless networks is expected to grow significantly now and in the very near future [2]. This has called for reconsideration of the state-of-the art fourth generation (4G) technologies to be able to face serious overloads and also much the anticipated acceleration in traffic demand fueled by the rapid proliferation in types and numbers of wireless devices. Several techniques to address the growing traffic loads have been undertaken such as reducing cell sizes and increasing their density alongside heterogeneous networks [3]. The deployment of smaller cells as part of heterogeneous networks is a common solution to enhance the capacity in highly populated areas as they manage higher-quality links and also allow increased spatial reuse. However, extreme densification might also increase the network deployment costs and implies more complex interference management.