Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | IEEE Xplore Digital Library |
---|---|
Author | Xun Sun Shaowei Wang |
Copyright Year | 2002 |
Abstract | Energy efficiency in communication networks has received increasing attention in both industry and academia. In this paper, we investigate the energy saving issue in a heterogeneous network (HetNet), which is introduced to cellular radio networks to improve capacity and enhance coverage. A HetNet consists of base stations (BSs) with different transmission powers, resulting in systematic power control that is more complex than that in the conventional cellular networks. The main difficulty is addressing the mutual interference between different kinds of BSs. In this paper, we try to minimize the power consumption of an OFDM-based HetNet while satisfying all users' rate requirements, as well as considering the inter-cell interference. Our general problem formulation leads to a nonconvex optimization task that is generally hard to tackle. We derive a concave lower bound of user's achievable rate for a given power allocation, based on which an efficient iterative algorithm is developed to solve the formulated problem efficiently. Numerical results show that our proposed resource allocation scheme works well in different scenarios. The energy consumption of the cellular system is reduced dramatically compared to other schemes. Moreover, our proposed algorithm converges quickly and stably, showing great potential for applications. |
Starting Page | 4407 |
Ending Page | 4416 |
Page Count | 10 |
File Size | 1356145 |
File Format | |
ISSN | 15361276 |
Volume Number | 14 |
Issue Number | 8 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2015-01-01 |
Publisher Place | U.S.A. |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Resource management Interference Optimization Energy consumption Wireless communication Algorithm design and analysis Signal to noise ratio nonconvex optimization Energy efficiency heterogeneous network interference management |
Content Type | Text |
Resource Type | Article |
Subject | Computer Science Applications Applied Mathematics Electrical and Electronic Engineering |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
Sl. | Authority | Responsibilities | Communication Details |
---|---|---|---|
1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
7 | National Digital Libarray of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
Loading...
|