Abstract
Uplink synchronous transmission has been proposed to improve the uplink capacity of DS-CDMA systems by means of canceling interference from the main paths of other intra-cell users. A significant capacity gain has been reported in a single cell environment. This Letter further investigates the uplink capacity in a multiple cell environment, where two crucial factors are taken into account, namely code shortage problem and soft handover. The impacts of the target Eb/Io and the other-to-own cell interference ratio, together with the number of channelisation codes, are discussed mathematically and then, confirmed through system level simulations with more realistic parameters.
Original language | English |
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Pages (from-to) | 1697-1701 |
Number of pages | 5 |
Journal | IEICE Transactions on Communications |
Volume | E87-B |
Issue number | 6 |
State | Published - Jun 2004 |
Keywords
- Code shortage
- Soft handover
- Uplink synchronous transmission