Capacity of WCDMA links with hetorgenous traffic

Capacity of WCDMA links with hetorgenous traffic

The soft capacity of the commercial WCDMA systems is defined as the average load that assures that the instantaneous load in the system stays below a target threshold with a high probability. In military communication systems each user link is required to have assured availability and hence the capa...

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3G mobile communication
Multiaccess communication
Spread spectrum communication
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description The soft capacity of the commercial WCDMA systems is defined as the average load that assures that the instantaneous load in the system stays below a target threshold with a high probability. In military communication systems each user link is required to have assured availability and hence the capacity has to be based on assured availability of each link rather than on an aggregate measure such as the system load factor. In this paper we derive the uplink capacity of WCDMA links based on link availability requirements for each user with a heterogeneous mix of user traffic, channel characteristics and orthogonality conditions. We use a unique approach by formulating and solving the capacity problem as an eigenvalue/eigenvector problem. Numerical examples are presented to illustrate the impact of various factors such as heterogeneous traffic and orthogonality conditions on capacity.
doi_str_mv 10.1109/ISPACS.2011.6146055
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subjects 3G mobile communication
Multiaccess communication
Spread spectrum communication
title Capacity of WCDMA links with hetorgenous traffic
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