Improving the Performance of Handoff Calls using Frequency Sharing

Abstract

In this paper, a two-tier cellular wireless network is characterized by overlapping the service area for managing the new calls users having different mobility speed. The overlapping property of the two-tier system provides the advantages that share the traffic load to improve the efficiency of new calls subscriber with guard channels in cell to handle the handoff calls. Using Guard channels, our strategy have the prioritization to the handoff calls. Micro cells are used to provide the services to slow-speed, high-intensity traffic area users and macro cells are overlaid over more than one micro cell cater mainly to lower density, high-speed users. The two-tier of micro cells and macro cells provide the secondary resource to provide the service for new calls as well as handoff calls with guard channels as overflow the slow speed users in macro cell by sharing the frequency in vertical direction as well as sharing the frequency in horizontal direction in the upper layer. The call lose probability of aggregate calls are developed through numerical analysis. The results justify the advantages of proposed strategy.

Rethinking Interference Mitigation Spectrum Efficiency Model in Femtocell Networks using FFR

“…Furthermore, power consumption is very important consideration to be taken into account in the next generation wireless networks. In metro city and NCR regions, where high speed and slow speed subscribers are compete for call activity as well as high data rates, may be serviced by two-tier networks as discussed in [1], [2]. The deployment of femtocell networks in such places brings new changes in cellular networks.…”

“…In current scenario, life style and development of metro city and NCR regions will accommodate fast speed, slow speed as well as pedestrian kind of subscribers at same region in same time. In [1], and [2] Vikas Solanki et al were proposed two-tier cellular networks, in which Virtual Direction Frequency Sharing (VDFS) and Horizontal Direction Frequency Sharing (HDFS) schemes take place to handle more intensive region where high and slow speed subscribers are present. Proposed two-tier model restricted fast speed subscribers to overflow in microcell and if slow speed subscribers overflowed to un-preferred tier then it will not return automatically, until it forced to overflow for serving the new/handoff calls in macrocell.…”