Ayman Radwan
ABSTRACT
The concept of multi-hop CDMA cellular networks has been around for sometime now. It is a widely accepted assumption that using multi-hopping in cellular networks will increase the cellular capacity. This capacity increase has yet to be quantified. In this paper, this quantification is done, for the first time, for multi-hop CDMA cellular networks with power control. CDMA networks are interference limited. For this reason, interference is calculated at BSs and relaying MTs during an uplink slot, assuming power control is in use in all hops. The results for interference calculations show the possible increase in capacity, by increasing either the number of simultaneous calls or data rates. An increase of 23% in the number of supported simultaneous calls is shown to be possible even with relaying MTs being different than active MTs sending their own data. This paper derives formulas to calculate interference at BSs and MTs using power control in all hops. It also quantifies the potential capacity increase using multi-hopping with power control.
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Index Terms
- Multi-hop CDMA cellular networks with power control
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