[PDF] Top 20 Design and Analysis of Transmission Strategies in Channel-Hopping Cognitive Radio Networks

... Furthermore, in paired CR networks, the events of fail transmission for CRPs are composed of intercollision among the CRPs and collision between PUs and ...control ... See full document

... kind of target channel selection approaches are to predetermine the target channels based on the long-term traffic ...transmitter and receiver can know their target channel sequence for future ... See full document

... handoff in terms of the extended data delivery time. The goal of this paper is to investigate the effects of spectrum handoffs on the channel utilization and the extended data ... See full document

... performance of connection-based spectrum handoffs in cognitive radio (CR) ...the transmission period of a secondary connection, multiple interruptions from the primary users ... See full document

... [email protected] and [email protected] [email protected] Abstract— In this paper, we study the spectrum selection problem in cognitive radio network with emphasis on ... See full document

... University of Southern California, Los Angeles, Cali- fornia, USA, in 1998 and 2003, respectively, all in Electrical ...assistant in the Integrated Media Systems Center at the Univer- ... See full document

... sensing-based and the probability-based spectrum decision schemes in the CR network when multiple interruptions from the primary user, sensing errors, and chan- nel capacity are taken into ...we ... See full document

... performance of pre-sensing strategies cannot be guaranteed especially under fast-fading channel ...its transmission by the primary ...spectrum in order to verify if there are available ... See full document

... loss and guarantee cell sequence. It can enhance the perfor- mance of a microcellular asynchronous transfer mode ...loss and support a nonoverlapping microcell environment as ...multicast of ... See full document

... article, in order to evaluate the QoS performance of spectrum management tech- niques in the hopping mode, an analytical frame- work based on the preemptive resumption priority (PRP) M/G/1 ... See full document

... Department of Computer Science, National Chiao Tung University, Hsinchu, Taiwan 2 Information & Communications Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan Email: ... See full document

... Even with totally random exponential traffic pat- terns, the effective data rate in the DBP-based channel selec- tion scheme is higher than that in direct switch or stochastic channel se[r] ... See full document

... non-intrusive cognitive radio scheme based on adaptive ...composed of two stages: In the first stage, we develop an adaptive estimator at the CT to estimate and track the composite ... See full document

... C++ and compiled them by using GNU g++ ...MSs, and 2000 ...PFSCRN-FTP and Greedy PFSCRN- ATP require ...setting of 40 CR MSs, 4 CR RSs, 64 sub-channels, 48 time-slots as ...time of the ... See full document

... performance of the proposed resource allocation algorithm, where the step sizes are set to μ 1 1 = μ 1 2 = ...0.2, and μ 2 1 = μ 2 2 = ...speeds, and the auction of the entire system converges ... See full document

... density of primary users vary with the density of secondary users? To answer the above questions, we first introduce the concept of k-connectivity in the CR ...existence of hierarchy, ... See full document

... common and feasible especially for the sensor ...environment and exchange its message with its neighbor ...MRT and FNT schemes may suffer performance degradation under specific net- work ...amount ... See full document

... University of Science and Technology Email: † ...sharing in cognitive radio ...welfare of a cognitive radio network, considering the cost for the primary user ... See full document

... relay. In this way, the chances that some node carrying an original or duplicate version of the packet finds a destination will ...[3] and [15] have also introduced the redundancy scheme for a ... See full document

... which in only suitable for a larger-sized packet ...bytes in the Internet. Second, because the size of the last segment is a variable, it is necessary to monitor the NAV of the last segment ... See full document