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Títol:
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A near-optimum MAC protocol based on the distributed queueing random access protocol (DQRAP) for a CDMA mobile communication system
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Autor/a:
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Alonso Zárate, Luis Gonzaga; Agustí Comes, Ramon; Sallent Roig, José Oriol
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Altres autors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GRCM - Grup de Recerca en Comunicacions Mòbils |
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Abstract:
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This paper presents and analyzes a new near-optimum medium access control (MAC) protocol. The proposed access scheme is suitable for a CDMA mobile communication environment, and keeps under control and upper bounded the number of simultaneous transmissions. It has a delay performance approaching that of an ideal optimum M/M/K system, where K is the number of spreading codes being used (maximum number of simultaneous transmissions). The protocol is a free random access protocol when the traffic load is light, and switches smoothly and automatically to a reservation protocol when traffic load becomes heavier. It is based on distributed queues and a collision resolution algorithm. Moreover, a physical receiver structure is proposed and analyzed in order to preserve the robustness of the protocol in a wireless link. The results obtained show that the protocol outperforms other well known medium access protocols in terms of stability and delay, even when taking into account the loss caused by channel propagation conditions. |
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Abstract:
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Peer Reviewed |
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Matèries:
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
-Mobile communication systems
-Access protocols
-Code division multiple access
-CDMA mobile communication system
-Collision resolution algorithm
-Delay performance
-Distributed queueing random access protocol
-Free random access protocol
-Land mobile radio
-Near-optimum medium access control protocol
-Physical receiver structure
-Queueing theory
-Radio receivers
-Reservation protocol
-Simultaneous transmissions
-Stability
-Telecommunication traffic
-Traffic load
-Wireless link
-DQRAP
-Sistemes de comunicacions mòbils |
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Drets:
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Tipus de document:
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Article |
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Publicat per:
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IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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Compartir:
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