Cooperative Strategies for End-to-End Energy Saving and QoS Control - Novel 3D Media Technologies - page 133

Chapter 8
Cooperative Strategies for End-to-End
Energy Saving and QoS Control
Evariste Logota, Firooz B. Saghezchi, Hugo Marques,
and Jonathan Rodriguez
Abstract Energy efficiency and Quality of Service (QoS) have become major
requirements in the research and commercial community to develop green com-
munication technologies for cost-effective and seamless convergence of all services
(e.g., data, 3D media, Haptics, etc.) over the Internet. In particular, efforts in
wireless networks demonstrate that energy saving can be achieved through coop-
erative communication techniques such as multihop communications or coopera-
tive relaying. Game-theoretic techniques are known to analyze interactions between
collaborating entities in which each player can dynamically adopt a strategy that
maximizes the number of bits successfully transmitted per unit of energy con-
sumed, contributing to the overall optimization of the network in a distributed
fashion. As for the core networks, recent findings claimed that resource over-
provisioning is promising since it allows for dynamically booking more resources
in advance, and multiple service requests can be admitted in a network without
incurring the traditional per-flow signaling, while guaranteeing differentiated QoS.
Indeed, heavy control signaling load has recently raised unprecedented concerns
due to the related undue processing overhead in terms of energy, CPU and memory
consumption. While cooperative communication and resource over-provisioning
have been researched for many years, the former focuses on wireless access and the
latter on the wired core networks only. Therefore, this chapter investigates existing
solutions in these fields and proposes new design approach and guidelines to
integrate both access and core technologies in such a way as to provide a scalable
and energy-efficient support for end-to-end QoS-enabled communication control.
This is of paramount importance to ensure rapid development of attractive 3D
media streaming in the current and future Internet.
Hugo Marques is also with the Instituto Polit´cnico de Castelo Branco, Portugal
E. Logota ( * ) • F.B. Saghezchi • J. Rodriguez
Instituto de Telecomunica¸˜es, Aveiro, Portugal
e-mail: [e-mail] ; [e-mail] ; [e-mail]
H. Marques
Instituto Polit´cnico de Castelo Branco, Castelo Branco, Portugal
e-mail: [e-mail]