Channel Statistical MAC Protocol for Cognitive Radio
| Autor: | Wen-Min Zhu, Hyung-Kun Park, Gao Xiang |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Computer Networks and Communications
business.industry Computer science ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Transmitter Throughput Data_CODINGANDINFORMATIONTHEORY Link Access Procedures D channel Cognitive radio Transmission (telecommunications) Control channel Computer Science::Networking and Internet Architecture Media Technology Electrical and Electronic Engineering business Computer Science::Information Theory Information Systems Computer network Data transmission Communication channel |
| Zdroj: | Journal of information and communication convergence engineering. 8:40-44 |
| ISSN: | 2234-8255 |
| DOI: | 10.6109/jicce.2010.8.1.040 |
| Popis: | opportunistic spectrum access (OSA) allows unlicensed users to share licensed spectrum in space and time with no or little interference to primary users, with bring new research challenges in MAC design. We propose a cognitive MAC protocol using statistical channel information and selecting appropriate idle channel for transmission. The protocol based on the CSMA/CA, exploits statistics of spectrum usage for decision making on channel access. Idle channel availability, spectrum hole sufficiency and available channel condition will be included in algorithm statistical information. The model include the control channel and data channel, the transmitter negotiates with receiver on transmission parameters through control channel, statistical decision results (successful rate of transmission) from exchanged transmission parameters of control channel should pass the threshold and decide the data transmission with spectrum hole on data channel. A dynamical sensing range as a important parameter introduced to maintain the our protocol performance. The proposed protocol"s simulation will show that proposed protocol does improve the throughput performance via traditional opportunistic spectrum access MAC protocol. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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