Abstract
In a wireless packet (e.g., ATM) network that supports an integrated mix of multimedia traffic, a large variety of mobiles with different service rates will need to be accommodated efficiently in a bandwidth-on-demand fair-sharing manner. In this paper, we propose and study Multi-Code CDMA (MC-CDMA) with Distributed-Queueing Request Update Multiple Access (DQRUMA) for multi-rate wireless packet networks. The network incorporates MC-CDMA (a flexible multiplexing scheme for providing multi-rate packet transmissions) and DQRUMA (an efficient demand-assignment multiple access protocol for wireless access and scheduling) to form a unified bandwidth-on-demand fair-sharing platform for multi-rate wireless services. A slot-by-slot packet transmit scheduling policy provides the possibility of slot-by-slot allocation of Pseudo-Noise (PN) codes (primary codes) and optimal power levels to the mobiles involved in packet transmissions. Also, a Maximum Capacity Power Allocation (MCPA) criterion is derived to exploit the subcode concatenation property of the MC-CDMA transmission. Simulation results show that the system provides close to ideal-access performance for multi-rate mobiles, both with homogeneous traffic characteristics and with a mix of heterogeneous traffic characteristics.
| Original language | English |
|---|---|
| Pages (from-to) | 713-721 |
| Number of pages | 9 |
| Journal | Proceedings - IEEE INFOCOM |
| Volume | 2 |
| State | Published - 1996 |
| Event | Proceedings of the 1996 15th Annual Joint Conference of the IEEE Computer and Communications Societies, INFOCOM'96. Part 1 (of 3) - San Francisco, CA, USA Duration: Mar 24 1996 → Mar 28 1996 |
ASJC Scopus subject areas
- General Computer Science
- Electrical and Electronic Engineering
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