Proposed texts to highlight Green Radio considerations for
Hierarchical Networks design
Document Number:
IEEE C802.16PPC-11/0010.ppt
Date Submitted:
2011-05-16
Source:
Hassan Al-Kanani and Nader Zein
NEC
E-mail: Hassan.alkanani@emea.nec.com; Nader.zein@emea.nec.com
Re:
ppc Call for Contribution.
Base Contribution:
N/A
Purpose:
This contribution proposes some text to highlight the green communication consideration for the deployment scenarios of HN.
Notice:
This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in
the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material
contained herein.
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1. Introduction
 Energy-efficient operation of next-generation networks technologies is a key factor
for achieving OPEX reduction and satisfying corporate social responsibility,
 Today the design of such networks primarily focuses on capacity and coverage
optimization while considerations and measures of the power and energy consumption
are largely ignored,
 This contribution briefly highlights the needs to adopt the Green Radio approach to
all aspects of overall system development in future networks,
 Green Radio includes efficient hardware and software platforms and careful
integration into SON functions to ensure maximum energy efficiency in different
deployment scenarios.
2. Key Drivers for Green Radio
• ~60% of Mobile carrier’s TCO is Operation Expenditures (OPEX)
• Power consumption is now 10 % of OPEX, and will be affected by traffic
increase and energy price surge
• Energy cost per bit should be lowered
Example TCO of a Mobile Carrier
(Source: In-Stat 2008/6)
3. Text proposal for the HN study report
--------------------------------------------- Start of the Proposal Text -----------------------------------
4.1.3 Special Energy Saving Mode of Base Station
This section may also serve as a place holder for green technologies, which are to be described in later stages.
Network systems designs should feature energy saving considerations and mechanisms where feasible without compromising
performance or QoS. Energy saving improvement implementations shall be considered from both the individual elements and on
the overall system/network level designs on both the PHY and MAC layer. Also provisions should be made for power saving
within the access mechanisms and by utilizing cooperative techniques. Network designs may support power energy savings
mechanisms such as traffic aware power saving capability to dynamically switch on/off part or whole BSs depending on traffic
demands.
--------------------------------------------------- End of the Proposal Text -----------------------------------
References
[1] IEEE 802.16ppc-11_0007r3, latest version of “Study Report on Hierarchical
Networks”