Implications of Fairness Criteria on the Techno-Economic Viability of Relaying Networks

Abstract

The introduction of relaying techniques into cellular networks is expected to reduce the total infrastructure cost, especially when coverage extension is sought. With the advent of networks such as LTE, guaranteeing high data-rate coverage may become a challenge even for incumbent operators which nowadays provide full coverage for voice service. However it is not straightforward that operators will be able (or want) to guarantee coverage for the high data-rates. In this paper we study how the techno-economic viability of the relaying solution depends on the type of service to be provided by the operator. We exemplify the trade off between coverage and system throughput with two fairness criteria: perfect fairness (coverage guarantee) and proportional fairness. We show that relays provide advantages when the operator is interested in providing bit-rate/QoS guarantees. When maximizing the system throughput or cell capacity, relays are of less value.

Hybrid radio resource allocation and interference coordination for type 1a‐relayed long term evolution uplink

“…Post-deployment performance evaluation has already been started for relay-based LTE-A networks. In [8], a techno-economic viability of a 4G cellular-relay networks according to the fairness goals of the operator has been examined. It is found that relays are best suited for guaranteed data rates in the entire coverage area, instead of increasing the data rate in specific locations.…”

A survey of next generation mobile communications research in China

“…The study in [49] analyzes the techno-economic viability of relay solutions based on fairness allocation criteria, while an analysis of the performance of dual-hop communication systems with fixed gain amplify-and-forward relay in terms of outage probability and ASER over Nakagami-m fading channels is given in [50]. In [51], the service connectivity and user access probabilities are investigated in infrastructure-based vehicular relay networks.…”

Aplicación del análisis tecno-económico a la gestión del espectro radioeléctrico. El caso de la reutilización de las bandas GSM en Europa

“…Diferentes estudios han encontrado valores diferentes de este coste máximo por nodo relay dependiendo de la técnica de transmisión utilizada, la arquitectura (solo macro celular o redes macro y micro celulares como en (P. Moberg, Skillermark, Johansson, & Furuskar, 2007) o el escenario de despliegue considerado (B. Timus, 2005); (P. Moberg et al, 2007); (Upase & Hunukumbure, 2008); (Doppler, Wijting, & Valkealahti, 2008);(B. Timus, Soldati, & Zander, 2009). Asimismo, la mayoría de estos estudios sobre la viabilidad económica del despliegue de nodos relays consideran que la red completa se despliega de una vez y, por tanto, no consideran escenarios más realistas donde las redes son desplegadas de manera incremental para ajustarse a la creciente demanda de tráfico de los usuarios (con la excepción de (B.…”