[PDF] Top 20 ACO-Based Algorithm in Cognitive Radio Networks

... The heterogeneous sensors are uniformly deployed in a circular area with a radius of 50 m and a fusion center located at the center. An 8 K mode DVB-T OFDM signal with a channel bandwidth of 8 MHz is employed as the ... See full document

... The power allocation to overlay subcarriers using GA is done and the performance is compared to a ladder based approach. Optimization is performed concerning different power budget and bandwidth. Improvement in ... See full document

... is based on opportunistic usage of licensed spectrum without causing interference to the primary user (PU) or licensed ...a cognitive radio ... See full document

... In this study, we adopt a modified model of the two- hop interference [14], in which two nodes are considered to be interfering if they are exactly two hops away from each other. We justify the choice of this model by ... See full document

... wireless cognitive radio ad hoc networks (W-CRAHN). The cognitive radio network consists of a number of channels and a group of secondary users or ...the cognitive network are ... See full document

... In cognitive radio networks, wideband spectrum sensing (WSS) has been advocated as an effective approach to increase the spectrum access opportunity of the secondary ...consumption. Based on ... See full document

... for Cognitive Radio Networks (CRN) is ...tion algorithm is developed to fulfill different performance objective as a solution for subcarrier allocation and power allocation problem for ... See full document

... A channel check is third-party research on a company's business based on collecting information from the distribution channels of the company. It may be conducted in order to value the company, to perform due ... See full document

... in Cognitive Radio Ad Hoc Networks” works on Throughput ...in cognitive radio ad hoc networks is where the availability of local spectrum resources may change from time to time ... See full document

... (Cognitive radio sensor network) with cognitive ...be ACO (Ant colony optimization) method used to find the shortest route with reliable routing in ... See full document

... Sensor Networks (WMSNs) have be- come famous to providing multimedia services to various type of applications such as environmental monitoring, location tracking and health care ...cellular networks to ... See full document

... We consider a secondary network comprising N nodes operating in a finite area. The SUs cooperate to make a decision on the PU presence in such a way that each secondary node forms a personal binary opinion yes/no on the ... See full document

... In this paper, we address the problem of routing in CRN which concerns about identification and maintenance of the optimal path from source to destination through intermediate relay node[r] ... See full document

... Neural networks overcome most of the complex problems to adapt dynamically to the system operating conditions, and to make correct decisions, if the signals are ... See full document

... of radio users coex- ist: the licensed (primary) holders of the spectrum and the unlicensed (secondary) users that opportunistically share the spectrum resources with the PUs within the service area of the CRCN, ... See full document

... In recent years, the optimizing WMN problem is interested in many researches. However it still remains open [1]. In there, gateway placement is the most interested problem in optimizing WMN. There are some analogous ... See full document

... cannot avoid interference with the PU networks. Secondly, the decision of accessing a spectrum hole must be taken at the very beginning of that opportunity and not after a long observation. In PU channels with ... See full document

... sensing cognitive radio is the basic function of the system, and is the realization of spectrum management, the premise of spectrum ...use. Based on spectrum sensing cognitive wireless Mesh ... See full document

... underlined based on the availability of the CR and PU loca- ...reference based clustering based on a predefined reference and a statistical clustering that relies on the CRs relative ...distance ... See full document

... bands. Cognitive radio, first proposed in [1], is a promising technology to exploit the under-utilized spectrum in an opportunistic manner ...of cognitive radio is spectral reuse, which allows ... See full document