Reuse Partitioning Scheme Research Articles

Performance Analysis of Reuse-Partitioning-Based Subchannelized OFDMA Uplink Systems in Multicell Environments

This paper presents a performance analysis of reuse partitioning (RUP)-based subchannelized orthogonal frequency-division multiple-access (OFDMA) uplink systems in multicell environments. The cochannel interference (CCI) statistic is calculated for OFDMA uplink systems. The derived statistic is then used to analyze the performance of subchannelized OFDMA systems based on RUP. Analysis and simulation results show that the performance of a subchannelized OFDMA system in multicell environments is noticeably dependent on the CCI, and the effect of CCI can be reduced by the RUP scheme. Finally, the results of the analysis yield the optimum RUP area for achieving the maximum system throughput.

Capacity improvement in cellular systems with reuse partitioning

Reuse Partitioning (RP) is a simple technique that can be used to increase the capacity of a cellular system. With RP, a cell is divided into several concentric regions, each associated with a different cluster size. In this paper, a Markov chain model is developed to evaluate the call blocking probability, Pb, of the basic (no channel rearrangement) n-region RP using fixed channel allocation (FCA). Channel rearrangements are introduced to further improve the capacity. For a certain RP scheme with multiple channel rearrangements (MCR), Pb is shown to have a known product-form solution. It is found that a single channel rearrangement scheme performs almost as well as the MCR scheme. One advantage of MCR is that it reduces the difference in Pb experienced by calls in the different regions. It is shown that the capacity with two-region (four-region) RP with MCR is about 25% (45%) higher than that of a conventional FCA system. The effect of moving users on call blocking and dropping probabilities is also examined.

Channel assignment schemes for cellular mobile telecommunication systems: A comprehensive survey

This article provides a detailed discussion of wireless resource and channel allocation schemes. The authors provide a survey of a large number of published papers in the area of fixed, dynamic, and hybrid allocation schemes and compare their trade-offs in terms of complexity and performance. We also investigate these channel allocation schemes based on other factors such as distributed⁄centralized control and adaptability to traffic conditions. Moreover, we provide a detailed discussion on reuse partitioning schemes, the effect of handoffs, and prioritization schemes. Finally, we discuss other important issues in resource allocation such as overlay cells, frequency planning, and power control.

Bounds and Performance Networks of Reuse Partitioning in Cellular

In this paper we study a scheme that allows asmooth increase of the capacity of a cellular system forcircuit switching by applying cell partitioning andusing dynamic channel allocation techniques. A bound is computed for this reuse partitioningscheme that gives the maximum theoretical gainaccomplished in the system bandwidth. The performance ofthe proposed scheme in terms of blocking probability is evaluated both when the position of themobiles remains unchanged and when mobility is takeninto account. The numerical results show that thecapacity of the proposed scheme is sensibly higher than that of a fixed allocation scheme.

Channel assignment schemes for cellular mobile telecommunication systems: a comprehensive survey

This article provides a detailed discussion of wireless resource and channel allocation schemes. The authors provide a survey of a large number of published papers in the area of fixed, dynamic, and hybrid allocation schemes and compare their trade-offs in terms of complexity and performance. We also investigate these channel allocation schemes based on other factors such as distributed/centralized control and adaptability to traffic conditions. Moreover, we provide a detailed discussion on reuse partitioning schemes, the effect of handoffs, and prioritization schemes. Finally, we discuss other important issues in resource allocation such as overlay cells, frequency planning, and power control.