Green cellular networks a survey some research issues and challenges
This presentation is the property of its rightful owner.
Sponsored Links
1 / 11

Green Cellular Networks: A Survey, Some Research Issues and Challenges PowerPoint PPT Presentation


  • 52 Views
  • Uploaded on
  • Presentation posted in: General

Green Cellular Networks: A Survey, Some Research Issues and Challenges. Nourah Alhassoun February 29, 2012. Part I. Objectiv e : A brief survey of methods to improve the power efficiency of cellular networks and explore some research issues and challenges

Download Presentation

Green Cellular Networks: A Survey, Some Research Issues and Challenges

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Green cellular networks a survey some research issues and challenges

Green Cellular Networks: A Survey, Some Research Issues and Challenges

Nourah Alhassoun

February 29, 2012


Part i

Part I

Objective:

  • A brief survey of methods to improve the power efficiency of cellular networks and explore some research issues and challenges

  • Suggest some techniques to enable an energy efficient or green cellular network

    Results:

  • A survey on methods to obtain energy savings in base stations such as architectural changes in base stations and heterogeneous network deployment

  • Propose a research vision by using some techniques(cognitive radio and cooperative relaying technologies) to make energy more efficient


Part ii

Part II

Important Aspects of a Green Networking:

I. Defining Green Metrics

II. Architecture Changes in Base Stations

III. Network Planning

IV. Addressing Energy Efficiency in Future Generation Wireless Systems

V. Some Broader Perspectives


I measuring greenness

I. Measuring Greenness

Energy Efficiency Metrics:

  • Facility-level: High-level systems where equipment is deployed

  • Equipment-level: Evaluate performance of an individual equipment

  • Network-level: Assess the performance of equipment with the consideration of features and properties


Ii architecture energy saving in base stations

II. Architecture: Energy Saving in Base Stations

  • Minimizing BS Energy Consumption

    • Improvements in Power Amplifier: Switch mode PA

    • Power Saving Protocols: Sleep Mode

  • Energy Aware Cooperative BS Power Management

    • Cell Zooming: BS can adjust its size according to network or traffic situation

  • Renewable Energy Resources

    • Solar and Wind Energy instead of off-grid sites


Iii network planning

III. Network Planning

Heterogeneous Network Deployment:

Based on smaller cells such as micro, pico and femtocells

  • Advantages:

    • Energy consumption of the network can be reduced up to 60% compared to a network with macro-cells only

    • Smaller cells use higher frequency bands to provide high data rates

  • Draw Backs:

    • The efficiency of macro-cell Base Station might be reduced


Green cellular networks a survey some research issues and challenges

Part IIIIV. Addressing Energy Efficiency in Future Generation Wireless Systems

Enabling Technologies:

  • Green Communication via Cognitive Radio:

    • Purpose: Collect information on the spectrum usage and access the unused frequency bands

    • Manage the spectrum optimally and dynamically

  • Green Communication delivered by Cooperative Relays:

    • Purpose: Improvement in throughput and coverage

    • Provide service to more users using less power


Iv addressing energy efficiency in future generation wireless systems

IV. Addressing Energy Efficiency in Future Generation Wireless Systems

  • Low Energy Spectrum Sensing

    • Cognitive Radio: design low complex cyclostationary detectors instead of energy detectors

  • Energy Efficient Resource Management with Applications in Heterogeneous Networks

    • Relay placement, optimal relay selection criterion

  • Addressing Uncertainty Issues

    • Cognitive Radio: did not take into account the effect of imperfect sensing

    • Cooperative Relays: optimal relays with perfect CSI


Vi some broader perspective

VI. Some Broader Perspective

Ideas to achieve energy efficient cellular network:

  • Statistical Power Profiles:

    Dynamic algorithms can be designed to switch BS to different power profile appropriate for that time of the day

  • Smart Grid Technology:

    Adding measurement sensors which can update the status of BSs then transmit them to other BSs and smart grid control system

  • Embodied Energy:

    Reducing the number of BS since embodied energy accounts for a significant proportion of energy consumed by the BS


Energy saving obtained by some of t he discussed techniques

Energy Saving Obtained by Some of the Discussed Techniques


Reference

Reference

Hasan, Z. Boostanimehr, H. 2011. “Green Cellular Networks: A survey, some research issues and challenges”. IEEE Communications Survey & Tutorials. V13,2,4.


  • Login