Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Mokayef, M. Hassan, W.A. Rahman, T.A. Ahmad, Y.A. |
| Copyright Year | 2012 |
| Description | Author affiliation: Wireless Communication Center, University of Technology Malaysia (UTM), Malaysia (Mokayef, M.; Hassan, W.A.; Rahman, T.A.) || Department of Communications Engineering, Engineering College, University of Diyala, Ba'aqubah 32001, Iraq (Ahmad, Y.A.) |
| Abstract | The 5850–7075MHz band is profoundly utilized for the fixed service such as Terrestrial Systems (TS) and microwave access (WiMAX) in various parts of the world. Nowadays, the High Altitude Platform System (HAPS) became a recognized system in this band. Therefore, terrestrial links are one of the most considerable interference with the HAPS gateway (HAPSGS) links. Hence, the legitimated interference level between HAPS and TS must be investigated to prevent performance degradation to both systems. This paper investigates the compatibility between HAPS and TS for microwave access (WiMAX) when both systems operate in co channel sharing scenario. This is done by evaluating the downlink (DL) and uplink (UL) performance of both systems. The compatibility results are based on the theoretical derivation of spectrum sharing scenario between HAPS and Terrestrial WiMAX user (TS) located in the coverage area of HAPS in high rain attenuation areas by using the deterministic methodology. This assessment has been executed in the urban area elevation angle. The performance of the system is evaluated in terms of interference to noise ratio (INR) of TS receiver inside the urban area coverage (UAC) of HAPS. Based on the study results, the minimum separation distance should be between 15 to 18 kilometers away from the reference point (i.e. Nadir Point (NP)). The isolation technique is applied in the distances less than 15 km and above 18 km in order to mitigate the interference. Consequently, the maximum isolation values should be 30.92 dB and 13.4 dB inserted between the FS and HAPS Gate Station (HAPSGS) and HAPS airship (HAPSAS) respectively to prevent the co-channel interference. |
| Starting Page | 854 |
| Ending Page | 858 |
| File Size | 174247 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781467304788 |
| e-ISBN | 9781467304795 |
| DOI | 10.1109/ICCCE.2012.6271337 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-07-03 |
| Publisher Place | Malaysia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Noise Interference WiMAX Logic gates Carrier-to-Noise Ratio Co-existence Broadband communication Co-channel interference-to-Noise Ratio HAPS Gain Elevation angle Antenna radiation patterns |
| Content Type | Text |
| Resource Type | Article |
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 Library 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...
|