Hierarchical Cellular Structures in High-Capacity Cellular Communication Systems

TL;DR

This paper investigates hierarchical cellular structures with inter-layer reuse, employing total frequency hopping and adaptive frequency allocation to enhance capacity and QoS in urban mobile networks, including macro, micro, pico, and femto cells.

Contribution

It introduces a novel hierarchical cellular framework with inter-layer reuse and strategies like T-FH and AFA to improve capacity without extensive frequency planning.

Findings

Increased network capacity through hierarchical structures.

Effective resource reuse with T-FH and AFA.

Cost-efficient QoS improvement with femto cells.

Abstract

In the prevailing cellular environment, it is important to provide the resources for the fluctuating traffic demand exactly in the place and at the time where and when they are needed. In this paper, we explored the ability of hierarchical cellular structures with inter layer reuse to increase the capacity of mobile communication network by applying total frequency hopping (T-FH) and adaptive frequency allocation (AFA) as a strategy to reuse the macro and micro cell resources without frequency planning in indoor pico cells [11]. The practical aspects for designing macro- micro cellular overlays in the existing big urban areas are also explained [4]. Femto cells are inducted in macro / micro / pico cells hierarchical structure to achieve the required QoS cost effectively.