Title :
Efficient Offline Coverage and Load Evaluation for CDMA Network Modeling
Author :
Whitaker, Roger M. ; Allen, Stuart M. ; Hurley, Stephen
Author_Institution :
Sch. of Comput. Sci., Cardiff Univ., Cardiff, UK
Abstract :
This paper addresses offline modeling for coverage and load evaluation in code-division multiple-access (CDMA) networks, where demand may exceed capacity. We introduce the offline problem of allocating transmission power to spatial snapshots of users, given their priority for admission to a network. Such network evaluation allows us to assess whether a current or potential network configuration can provide adequate physical-layer resources for a specific snapshot of users at a particular point in time. This may be reapplied many times with different snapshots of the user location and different requests for services. We introduce a new heuristic approach that substantially reduces computational complexity for the problem. We benchmark the algorithms by comparison with the simulation of online power control.
Keywords :
code division multiple access; telecommunication network routing; CDMA network modeling; code-division multiple-access networks; load evaluation; offline coverage; online power control; Cell planning; Universal Mobile Telecommunications System (UMTS); code-division multiple access (CDMA); network evaluation; power control (PC); radio network design;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2009.2017900