Capacity Enhancement in CDMA Cellular Networks using Multi-hop Communication
ISCC '06 Proceedings of the 11th IEEE Symposium on Computers and Communications
Load balancing and relaying framework in TDD W-CDMA multi-hop cellular networks
NETWORKING'05 Proceedings of the 4th IFIP-TC6 international conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication Systems
Multi-hop capacity of MIMO-multiplexing relaying systems
IEEE Transactions on Wireless Communications
Congestion relief in CDMA cellular networks using multihop inter-cell relay
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
A study of multi-hop cellular networks
Wireless Communications & Mobile Computing
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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.