Capacity of a Cellular Radio System Using a Narrowband Multiuser Detector
2002 (English)Conference paper (Refereed)
With a narrowband multiuser detector (MUD), multiple users can simultaneously share the same chan- nel without using a bandwidth expanding signature code when suficient power differences at the receiver are main- tained. In this paper we assess the capacity gain that can be achieved in a hypothetical cellular system with centralized power control, using a narrowband MUD based on succes- sive cancellation. The power control algorithm is adapted to multiple users per channel in a cell. Simulation results are presented for two heuristic CIR based channel assign- ment schemes. The MUD allows for a substantial capacity gain due to a tighter packing of users in a channel. The observed gain compared to a conventional single user per channel system, ranges from 1.4 to 5 for cluster sizes C = 1 and 7, respectively.
Place, publisher, year, edition, pages
Delft, Netherlands: Delft TU , 2002.
Multiuser detection, cellular radio system, transmitter power control, capacity, blocking probability.
Computer and Information Science
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-28007OAI: oai:DiVA.org:kth-28007DiVA: diva2:383796
Symposium on mobile multimedia systems & applications
QC 201101112011-01-052011-01-052011-01-11Bibliographically approved