Spectral Efficient Frequency Allocation Scheme in Multihop Cellular Network

Radio frequency allocation is of great importance in the multihop cellular network, because some extra resources (frequency or time slot) seem to be allocated to the relay station. Generally, the tradeoff must be made between the frequency reuse factor and the inter-cell interferences during establishing frequency allocation scheme. A "Pre-configured and Fixed (PreF)" frequency allocation scheme has been proposed in. In this paper, the concept of "Soft Frequency Reuse (SFR)" in is first borrowed, and applied to the multihop cellular network. After that, the improvement is made to the SFR scheme, and a more efficient "Modified SFR (MSFR)" frequency allocation scheme is proposed.