Cross-Layer Design for TCP Performance Improvement in Cognitive Radio Networks
In cognitive radio (CR) networks, the end-to-end transmission-control protocol (TCP) performance experienced by secondary users is a very important factor that evaluates the secondary user perceived quality of service (QoS). Most previous works in CR networks ignore the TCP performance. In this pape...
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| Published in | IEEE transactions on vehicular technology Vol. 59; no. 5; pp. 2485 - 2495 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
New York, NY
IEEE
01.06.2010
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subjects | |
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| Abstract | In cognitive radio (CR) networks, the end-to-end transmission-control protocol (TCP) performance experienced by secondary users is a very important factor that evaluates the secondary user perceived quality of service (QoS). Most previous works in CR networks ignore the TCP performance. In this paper, we take a cross-layer design approach to jointly consider the spectrum sensing, access decision, physical-layer modulation and coding scheme, and data-link layer frame size in CR networks to maximize the TCP throughput in CR networks. The wireless channel and the primary network usage are modeled as a finite-state Markov process. Due to the miss detection and the estimation error experienced by secondary users, the system state cannot be directly observed. Consequently, we formulate the cross-layer TCP throughput optimization problem as a partially observable Markov decision process (POMDP). Simulation results show that the design parameters in CR networks have a significant impact on the TCP throughput, and the TCP throughput can be substantially improved if the low-layer parameters in CR networks are optimized jointly. |
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| AbstractList | In cognitive radio (CR) networks, the end-to-end transmission-control protocol (TCP) performance experienced by secondary users is a very important factor that evaluates the secondary user perceived quality of service (QoS). Most previous works in CR networks ignore the TCP performance. In this paper, we take a cross-layer design approach to jointly consider the spectrum sensing, access decision, physical-layer modulation and coding scheme, and data-link layer frame size in CR networks to maximize the TCP throughput in CR networks. The wireless channel and the primary network usage are modeled as a finite-state Markov process. Due to the miss detection and the estimation error experienced by secondary users, the system state cannot be directly observed. Consequently, we formulate the cross-layer TCP throughput optimization problem as a partially observable Markov decision process (POMDP). Simulation results show that the design parameters in CR networks have a significant impact on the TCP throughput, and the TCP throughput can be substantially improved if the low-layer parameters in CR networks are optimized jointly. |
| Author | Leung, Victor C M Yu, F Richard Changqing Luo Hong Ji |
| Author_xml | – sequence: 1 surname: Changqing Luo fullname: Changqing Luo email: ytluocq@gmail.com organization: Beijing Univ. of Posts & Telecommun., Beijing, China – sequence: 2 givenname: F Richard surname: Yu fullname: Yu, F Richard email: richard_yu@carleton.ca organization: Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, ON, Canada – sequence: 3 surname: Hong Ji fullname: Hong Ji email: jihong@bupt.edu.cn organization: Sch. of Inf. & Commun. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China – sequence: 4 givenname: Victor C M surname: Leung fullname: Leung, Victor C M email: vleung@ece.ubc.ca organization: Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada |
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| Keywords | Performance evaluation Markov process Markov decision Control circuit Wireless telecommunication Optimization method Information rate Transmission control protocol Cognitive radio (CR) networks Thyristor circuits cross-layer design Cross-layer approach Traffic control transmission control protocol (TCP) throughput Data link Modulation coding Estimation error Design criterion Flow rate regulation Transmission protocol Teletraffic Information transmission Phase shifter Telecommunication channels System simulation Service quality Radio communication Software radio |
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| SubjectTerms | Access methods and protocols, osi model Access protocols Applied sciences Channels Chromium Circuit properties Circuits of signal characteristics conditioning (including delay circuits) Cognitive radio Cognitive radio (CR) networks Cross layer design Design engineering Electric, optical and optoelectronic circuits Electrical engineering. Electrical power engineering Electrical power engineering Electronic circuits Electronics Estimation error Exact sciences and technology Markov processes Mathematical models Modulation Modulation coding Networks Operation. Load control. Reliability Packet switched networks Power networks and lines Quality of service Radio Radiocommunication specific techniques Radiocommunications Studies TCP (protocol) TCP-IP Telecommunications Telecommunications and information theory Teleprocessing networks. Isdn Throughput transmission control protocol (TCP) throughput Wireless sensor networks |
| Title | Cross-Layer Design for TCP Performance Improvement in Cognitive Radio Networks |
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