Downlink capacity improvement and interference reduction through Reverse Frequency Allocation
Multi-tier networks comprising of macro-cellular network overlaid with less power, short range, home base stations like femtocells provide an economically feasible method for increasing the cellular capacity. Also the benefit of femtocells is found more in downlink since the traffic in downlink is s...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/97428 http://hdl.handle.net/10220/11970 |
| _version_ | 1826127336712437760 |
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| author | Jacob, Ponnu. James, Ashish. Madhukumar, A. S. |
| author2 | School of Computer Engineering |
| author_facet | School of Computer Engineering Jacob, Ponnu. James, Ashish. Madhukumar, A. S. |
| author_sort | Jacob, Ponnu. |
| collection | NTU |
| description | Multi-tier networks comprising of macro-cellular network overlaid with less power, short range, home base stations like femtocells provide an economically feasible method for increasing the cellular capacity. Also the benefit of femtocells is found more in downlink since the traffic in downlink is several times more than in uplink. However, the femtocells share the same licensed frequency spectrum as that of the macrocell resulting in cross tier interference which degrades the downlink traffic considerably. This paper investigates a novel method for seamlessly embedding femtocells within a macrocell resource distribution framework to create a two-tier system, which incorporates a cross-tier complementary spectrum sharing known as Reverse Frequency Allocation (RFA) along with Soft Frequency Reuse (SFR) strategy. The proposed scheme guarantees inter-cell orthogonality with reduced interference. It also assures a reasonably high system spectral efficiency, while providing better performance for the users especially in the downlink. Simulation results prove that this scheme can bring about higher system throughput and lower co-channel interference irrespective of the distance of the femtocell from the macrocell base station. |
| first_indexed | 2024-10-01T07:07:14Z |
| format | Conference Paper |
| id | ntu-10356/97428 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:07:14Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/974282020-05-28T07:17:33Z Downlink capacity improvement and interference reduction through Reverse Frequency Allocation Jacob, Ponnu. James, Ashish. Madhukumar, A. S. School of Computer Engineering IEEE International Conference on Communication Systems (2012 : Singapore) DRNTU::Engineering::Computer science and engineering Multi-tier networks comprising of macro-cellular network overlaid with less power, short range, home base stations like femtocells provide an economically feasible method for increasing the cellular capacity. Also the benefit of femtocells is found more in downlink since the traffic in downlink is several times more than in uplink. However, the femtocells share the same licensed frequency spectrum as that of the macrocell resulting in cross tier interference which degrades the downlink traffic considerably. This paper investigates a novel method for seamlessly embedding femtocells within a macrocell resource distribution framework to create a two-tier system, which incorporates a cross-tier complementary spectrum sharing known as Reverse Frequency Allocation (RFA) along with Soft Frequency Reuse (SFR) strategy. The proposed scheme guarantees inter-cell orthogonality with reduced interference. It also assures a reasonably high system spectral efficiency, while providing better performance for the users especially in the downlink. Simulation results prove that this scheme can bring about higher system throughput and lower co-channel interference irrespective of the distance of the femtocell from the macrocell base station. 2013-07-22T04:44:18Z 2019-12-06T19:42:41Z 2013-07-22T04:44:18Z 2019-12-06T19:42:41Z 2012 2012 Conference Paper Jacob, P., James, A., & Madhukumar, A. (2012). Downlink capacity improvement and interference reduction through Reverse Frequency Allocation. 2012 IEEE International Conference on Communication Systems (ICCS). https://hdl.handle.net/10356/97428 http://hdl.handle.net/10220/11970 10.1109/ICCS.2012.6406164 en © 2012 IEEE. |
| spellingShingle | DRNTU::Engineering::Computer science and engineering Jacob, Ponnu. James, Ashish. Madhukumar, A. S. Downlink capacity improvement and interference reduction through Reverse Frequency Allocation |
| title | Downlink capacity improvement and interference reduction through Reverse Frequency Allocation |
| title_full | Downlink capacity improvement and interference reduction through Reverse Frequency Allocation |
| title_fullStr | Downlink capacity improvement and interference reduction through Reverse Frequency Allocation |
| title_full_unstemmed | Downlink capacity improvement and interference reduction through Reverse Frequency Allocation |
| title_short | Downlink capacity improvement and interference reduction through Reverse Frequency Allocation |
| title_sort | downlink capacity improvement and interference reduction through reverse frequency allocation |
| topic | DRNTU::Engineering::Computer science and engineering |
| url | https://hdl.handle.net/10356/97428 http://hdl.handle.net/10220/11970 |
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