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Load and interference based demand assignment (LIDA) for integrated services in CDMA wireless systems

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2 Author(s)
Chih-lin I ; Bell Labs., Lucent Technol., Holmdel, NJ, USA ; Nanda, S.

To provide a smooth migration path to serve bursty packet data traffic at rates up to four to eight times the basic single (voice) channel rate in wireless CDMA (standard) networks, a unified bandwidth on demand platform is realized by multi-code CDMA which allows users to transmit on demand using multiple codes. We propose a network control strategy that accounts for channel loading, interference, and soft handoff in making the rate assignment and QOS decisions. Our algorithms, called load and interference based demand assignment (LIDA), enable the dynamic, packet-like demand-assigned access of MC-CDMA with load and interference based control in a cellular environment. It protects voice (and other high priority or delay sensitive) isochronous users, but accommodates peak rate access by high data rate users when the load on the channel permits. Thus the sharing of the channel between voice users and high data rate services is possible without the potentially very high voice outage probability

Published in:

Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity  (Volume:1 )

Date of Conference:

18-22 Nov 1996