Common control channel allocation in cognitive radio networks through UWB communication

Abstract

The implementation of a common control channel is one of the most challenging issues in cognitive radio networks, since a fully reliable control channel cannot be created without reserving bandwidth specifically for this purpose. In this paper, we investigate a promising solution that exploits the Ultra Wide Band (UWB) technology to let cognitive radio nodes discover each other and exchange control information for establishing a communication link. The contribution of this paper is threefold: (i) we define the communication protocol needed to let cognitive radio nodes discover each other and exchange control information for link set up, (ii) we overcome the gap in coverage, which typically exists between UWB and long-medium range technologies, by using multi-hop communication, (iii) we evaluate the performance of our approach by adopting an accurate channel model and show its benefits with respect to an in-band signalling solution.

Adaptive quorum-based channel-hopping distributed coordination scheme for cognitive radio networks

“…The ultra-wideband (UWB) transmission technology is mainly utilized in the underlay CCC approaches. Four major control channel design schemes are recognized based on CCC classification: sequencebased [6,7], [14][15][16][17][18][19][20][21][22], and [25], group-based [23] and [24], dedicated CCC [41], and underlay CCC [43].…”

Neighbor discovery in traditional wireless networks and cognitive radio networks: Basics, taxonomy, challenges and future research directions

“…There are certain mechanisms employed to establish a common control channel without reserving any space in the frequency spectrum. This control channel is used to exchange the context information (Masri et al, 2012). Setting up a common control channel is important but this must be done with minimum cost.…”

“…One promising solution to overcome these challenges is the use of Ultra Wide Band (UWB) technology, proposed by Masri et al (2012). This technology is preferred due to its negligible interference to narrowband transmissions, low complexity and low power consumption.…”

“…Rather it depends only on the cooperation of SUs in the networks. SUs individually search for neighboring SUs without the help of network infrastructure (Jian-zhao et al, 2010;Masri et al, 2012). Distributed algorithms do not require global synchronization of the network and SUs can simultaneously transmit and receive on the same channel to perform neighbor discovery (Borbash et al, 2007).…”

Multi-path routing In Cognitive Radio Networks for multimedia communication using sample division multiplexing

“…The CCC is used for exchanging the spectrumrelated information among the Cognitive Radio (CR) users and co-ordinating the transmission-related activities. It facilitates neighbor discovery, helps in spectrum sensing coordination, control signaling and exchange of local measurements between the CR users [18], [19]. The communications through CCC are effected in discrete time slots as described in [1].…”