Channel allocation for multirate MC-CDMA systems with the most regular binary sequence

• Published in: IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 Vol. 7; pp. 4833 - 4837 Vol. 7
• Main Authors: Chung Shue CHen, Wing Shing Wong
• Format: Conference Proceeding
• Language: English
• Published: Piscataway, New Jersey IEEE 2004
• Subjects: Applied sciences; Bandwidth; Binary sequences; Channel allocation; Data engineering; Equipments and installations; Exact sciences and technology; Intserv networks; Mobile radiocommunication systems; Multiaccess communication; Multicarrier code division multiple access; Operation, maintenance, reliability; Radiocommunications; Resource management; Scheduling; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Teletraffic; Transmission and modulation (techniques and equipments); Wideband; Performance evaluation; Mobile radiocommunication; 3G mobile communication; Wireless telecommunication; Multicarrier; Information rate; Teletraffic; Scheduling; Resource sharing; Multirate system; Buffer system; Multimedia communication; Information transmission; Time variation; Varying speed; Optimization; Time slot assignment; Binary sequence; Code division multiple access; Channel allocation; Flexible transmission; Transmission rate; Delay time; Service quality
• ISBN: 0780385217; 9780780385214
• ISSN: 1090-3038; 2577-2465
• DOI: 10.1109/VETECF.2004.1405013

In 3G and future wireless systems, multirate operation is one of the most important features to allow flexible data rates for different classes of multimedia service. Variable transmission rates can be provided based on efficient assignment of time slots, frequencies, codes, or their combinations. This allows a better sharing of the bandwidth. In this paper, we focus on the channel assignment efficiency for integrated services in MC-CDMA systems. Channel splitting optimization in multirate operation via time-code scheduling is proposed with the most regular binary sequence (MRBS). The devised time varying assignment of channels schedules traffic in an evenly spaced manner to achieve a fully flexible transmission rate while avoiding excessive delay or buffer requirement. A relatively distributed solution of transmission scheduling is proposed to resolve multiple access contention. With a more efficient resource management, the system can accommodate a higher traffic intensity and this leads to an overall capacity gain.