[PDF] Top 20 Joint Beam Forming, Power and Channel Allocation in Multi-User and Multi-Channel Underlay MISO Cognitive Radio Networks

... The advantage of using MISO is that the multiple antennas and the redundancy coding/ processing is moved from the receiver to the transmitter. In instances such as cell phone , this can be a significant advantage ... See full document

... Sonar arrays are used both actively and passively in 1-, 2- and 3-dimensional array. The beamforming technique is deployed in sonar to compensate the significant problem of slower propagation speed of sound as compared ... See full document

... The max–min fairness criteria makes perfect fairness for all secondary links. However, the link with the worst channel condition limits the transmission rate of all sec- ondary links. Therefore, the focus of ... See full document

... [6], channel assignment in cellular communications is addressed to maximize the frequency spectrum utilization and to minimize the frequency interference ...in cognitive radio secondary users can ... See full document

... transmit power with no severe restrictions on transmission power due to any interference from SU transmissions will not be harmful to the inac- tive ...the underlay approach, SUs share the li- censed ... See full document

... resource allocation in inter- active multiuser ...and user fairness issues of CR networks, the authors in [14] proposed a distributed power control strategy by using a cooperative Nash ... See full document

... resource allocation algorithms have been extensively investigated for stationary SUs [2], ...resource allocation algorithm using amplify and forward multi-antenna relays in a cooperative CRN is ... See full document

... robust power allocation scheme solved the problem on how to maximize the throughput capac- ity of SCs on the condition that the quality of service of the PU would be ...the channel between the S-Tx ... See full document

... the channel allocation solution matrix R. When we assign a channel c to a link between two routers i and j, we set the corresponding entries R[i, j] and R[j, i] to ...assign channel 36 to ... See full document

... the channel capacity in multi-channel cognitive radio ...the channel capacity is determined by the static distribution of state occupancy ... See full document

... topology networks based on the IEEE ...interference-aware multi-channel clustering algorithm to solve coexistence ...frequency channel and can move together to different channel when ... See full document

... transmission power, frequency channel, ...a cognitive radio scenario where concurrent primary and secondary communications are allowed by exploiting spatial reuse as long as the SUs cooperate ... See full document

... Andrey Markov began the study of an important new type of chance process. In this process, the outcome of a given experiment can affect the result of the further experiment. This process is called a Markov chain. As per ... See full document

... In this section, we present the spectrum sensing algorithm of our sensing scheme. Spectrum sensing is the first and most critical step in efficient cognitive radio networking as it can potentially make-or- ... See full document

... Clustering is a popular grouping technique in distributed wireless networks. CR users are divided into clusters based on cluster formation algorithms. One member of the cluster is elected as the CH, which acts as ... See full document

... psychological radio (CR) organizes that can adjust their transmission parameters as per the ...psychological radio system condition, distinctive clients can be arranged as essential clients (Pus), Since ... See full document

... The AHP method is an estimation algorithm for multi- criteria decision making including quantitative and qualitative criteria. The AHP problem can be divided in four hierarchical levels: objective, criteria, ... See full document

... Although multi radio mesh nodes have the potential to significantly improve the performance of mesh networks, efficient channel assignment is a key issue in guaranteeing network connecti[r] ... See full document

... based Channel Assignment scheme, which computes the rank for each link based on the aggregate traffic, weighted cumulative expected time from gateway and number of NICs per node ...the channel assignment ... See full document

... assigned a channel. If there exist several links whose EIL are equivalent, the Rank defined in Equation 13 is used to break the tie. For link l, n ( l ) is the number of neigh- bors which is defined as the number ... See full document