[PDF] Top 20 A Robust Power Allocation Scheme in Ad-Hoc Cognitive Radio Networks

... on power allocation in underlay mode are investigated to reduce the energy consumption and to maximize the energy-efficient and the cognitive net- work capacity ...tive radio networks ... See full document

... Abstract: Cognitive radio is one of the Frontline areas in wireless ...of cognitive-communication will be ...suboptimum scheme using the JOUSAM model for the cognitive radio ... See full document

... resources allocation is a major problem in cognitive radio ad hoc networks and currently most of the research papers use meta-heuristics to solve ...the cognitive ... See full document

... central scheme is difficult to realize the realistic implementation because of the com- plexity, or their scheme gave the loads to the network due to the centralized ...for cognitive ... See full document

... a scheme to discover multiple routes but through the same channel, while intra-route spectrum diversity is a scheme to discover a single route but through multiple ... See full document

... With an explosion in the diversity of real-time services, the more reliable communication and the better QoS guarantee are required. In the above literatures, most of them consider the QoS problem assuming that: 1) allow ... See full document

... Cognitive Radio Networks (CRNs) are created by using devices with cognitive capabilities that provide solution to address the fixed spectrum accessibility and the inefficiency in the spectrum ... See full document

... The channel selection is an important area in the CRAHNs. It enables the CR to choose the best channel among the pool of sensed channels. The current re- search in the area of channel selection relies on the lat- est ... See full document

... uncertainty, where a large number of secondary connections (SCs) share the same frequency spectrum with a primary user (PU). Specifically, considering the fact that the channel gain estimates from the secondary ... See full document

... mitigation scheme in cognitive radio ad hoc ...efficient scheme in combating Byzantine attacks in cognitive radio ...proposed scheme therefore detects ... See full document

... resources. Cognitive radio technology is expected to enable frequency resources to be used more ...transmit power of the cognitive radio is ...different power control techniques ... See full document

... perform power loading without consider- ing the channel selection ...different power loading level, and uniform lower bound integer bits loading (IBL) causes an uneven transmission power waste, ... See full document

... The key contributions of this study are (1) three-stage spectrum sensing scheme that provides fast and accurate and explore sensing. (2) Fast sensing at high SNR, and accurate sensing at low SNR with an increased ... See full document

... first condition implies that the multi-path discovery pro- cedure is confined to the final destination in order to limit the overhead. The second condition introduces a robust behavior when a node is not any more ... See full document

... centralized cognitive network operating in the low-SINR regime composed of nodes and available frequencies, over which the communicating pairs seek to transfer ...and power allocation such that the ... See full document

... adhoc networks are most promising approach for the effective communication between two ...scheduling scheme in here can efficiently invoke relay transmission without introducing significant signaling ... See full document

... Cognitive Radio Communication technology used for supporting dynamic spectrum access ...scenario, Cognitive radio becomes a popular solution over inefficiency in the spectrum ...a ... See full document

... The cognitive radio network (CRN) is a promising solution to the problem of spectrum ...utilization, cognitive radio requires a robust spectrum sensing and spectrum sharing ...sharing ... See full document

... spectrum allocation is the predominant spectrum allocation methodology for traditional wireless ...spectrum allocation strategy has resulted ... See full document

... of radio spectrum. Thus radio spectrum is one of the most heavily used ...recent radio spectrum measurements show that the fixed spectrum allocation policy is not suitable for current wireless ... See full document