[PDF] Top 20 A MAC protocol with an improved connectivity for cognitive radio networks

... control protocol that is designed for wireless cognitive radio ad hoc networks ...The cognitive radio network consists of a number of channels and a group of secondary users or ... See full document

... multi-channel cognitive radio networks ...CSMA-based cognitive medium access control (MAC) protocol integrating the SDCSS to enable efficient spectrum sharing among ... See full document

... hybrid MAC protocol which is based on partial IEEE ...TDMA MAC protocols, specifically designed to enable dynamic spectrum access (DSA) in cognitive radio ...CSMA-TDMA protocol ... See full document

... protocols to fully capitalize CR’s potential. In order to exploit transmission opportunities in licensed bands, the tension between primary user protection and secondary user spectrum access should be judiciously ... See full document

... the protocol overview, we consider the contention phase as one or multiple backoff contention windows according to the dynamic backoff algorithm (Section ... See full document

... a cognitive resource management protocol that, based on sensing, the infra- structure system allocates transmit power and transmis- sion time to reduce ...RTS/CTS protocol, ...(EMA) MAC ... See full document

... ad-hoc networks are transmitted through unlicensed ...ad-hoc networks. But, dynamic spectrum access based CR ad-hoc networks introduce a selection of licensed PU free control and data channel for CR ... See full document

... Several MAC protocols for cognitive radio networks exist in the literature. These protocols can be classified according to how the SU deals with the appearance of the PU in two strategies [5]. ... See full document

... Aforementioned MAC protocols assume that SUs can perfectly sense the radio ...multi-channel cognitive radio networks since the sensing performance in terms of misdetection and false ... See full document

... token-based MAC protocol proposed in this paper ...that cognitive radio is a key component of good performance by IoT-enabled ...all cognitive-radio applications, each node can ... See full document

... AMI networks, smart meters located at customer premises are connected to the Meter Data Management System (MDMS), and MDMS serves as the control centre of storage, management and processing of consumer ... See full document

... these networks, which is a challenge in meeting the requirements of real-time and quality of service (QoS) sensitive applications such as online gaming, voice over Internet protocol (VoIP), multimedia ... See full document

... Sensor networks have consistently relied on Radio Frequency (RF) to provide connectivity between various sensor nodes and Cluster Head ...sensor networks. The requirements for Medium Access ... See full document

... Our protocol does not require any ...(listening radio) and another is for data transmission (data ...first radio front-end while transmitting or receiving data on the other ...two radio ... See full document

... wireless networks are based on a static or fixed spectrum assignment policy that is regulated by government agencies, has let to a quasi-scarcity of the ...available. Cognitive radio (CR) [1] ... See full document

... nodes (50 to 300) in a 1000 m × 1000 m area to study the impact of various network sizes on the performance of the protocols. The areas ranged from a low-density net- work (50 SUs) to a relatively dense network (300 ... See full document

... IEEE 802.15.4 defines several addressing modes: it allows the use of either IEEE 64-bit extended addresses or (after an association event) 16-bit addresses unique within the PAN .This document supports both 64-bit ... See full document

... this protocol is shown in Figure ...routing protocol in this paper has introduced the energy aware mechanism, saving energy consumption, and ensuring the ... See full document

... The Radio Environment Maps (REM) is an emerging technology in the context of spectrum awareness that imposes the database approach and offers a functional facility of boosting the network functions by incorporat- ... See full document

... (V2I) networks could prevent or mitigate 80% of crashes at intersections and during lane ...vehicular networks are receiving even higher interest and support from academia, government, and auto- mobile ... See full document