Multi-radio multi-channel multi-hop wireless networks recently have drawn considerable research attention. A number of results have been presented on joint optimization of routing, link scheduling, and channel assignment in such networks. Although dynamic channel switching has some benefits, it also poses a number of challenges in managing the network protocols and causes delay in switching cha...

By exploiting multi-radio multi-channel technology, wireless mesh networks can effectively provide wireless broadband access to the Internet for mobile users. Due to the limited number of orthogonal channels, overlapping channel assignment is one of the main factors that greatly affect the network capacity. However, current results in this area are not so satisfying. In this paper, we first pro...

We propose ZAP, an algorithm for the distributed channel assignment in cognitive radio (CR) networks. CRs are capable of identifying underutilized licensed bands of the spectrum, allowing their reuse by secondary users without interfering with primary users. In this context, efficient channel assignment is challenging as ideally it must be simple, incur acceptable communication overhead, provid...

Abstract– With limited frequency spectrum and a tremendous growth in the demand for mobile communication services, the problem of channel assignment becomes increasingly important. Efficient channel assignment allows for an increased utilization of the limited frequency spectrum available for land mobile radio-telephone service. In this paper, a new traffic-adaptive non-uniform compact pattern ...

this paper concerns the transmission of two independent gaussian sources over a two-user decentralized interference channel, assuming that the transmitters are unaware of the instantaneous csis. the availability of the channel state information at receivers (csir) is considered in two scenarios of perfect and imperfect csir. in the imperfect csir case, we consider a more practical assumption of...

In this paper channel assignment in ad hoc network using by channel impulse response is described. The distribution of channel impulse response is appropriate for the estimation of two propagation components (LOS – Line-of-Sight, NLOS – NonLine-of-Sight). The Rician factor K, represents the type of distribution, namely LOS component has Rician distribution and NLOS component has Rayleigh distri...

Heterogeneous network (HetNet) consisting of many small base stations (SBSs) within a present macro base station (MBS) is considered. The impact of SBS power on/off is discussed on network power consumption, throughput, and handover, and also the decentralized dynamic channel assignment. Keywords— heterogeneous network; power on/off; handover; throughput; channel assignment

Multicast routing is one of the most important services in Multi Radio Multi Channel (MRMC) Wireless Mesh Networks (WMN). Multicast routing performance in WMNs could be improved by choosing the best routes and the routes that have minimum interference to reach multicast receivers. In this paper we want to address the multicast routing problem for a given channel assignment in WMNs. The channels...