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- Publisher Website: 10.1109/GLOCOM.2017.8254472
- Scopus: eid_2-s2.0-85046350537
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Conference Paper: Joint Pilot Allocation and Robust Beam-Vector Design for Ultra-Dense TDD C-RAN
Title | Joint Pilot Allocation and Robust Beam-Vector Design for Ultra-Dense TDD C-RAN |
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Authors | |
Issue Date | 2017 |
Citation | Proceedings - IEEE Global Communications Conference, GLOBECOM, 2017, v. 2018-January, p. 1-6 How to Cite? |
Abstract | This paper deals with the unavailability of full CSI in ultra-dense user-centric TDD C-RAN. To reduce the channel training overhead, we consider the incomplete CSI case, where only large-scale inter-cluster CSI is available. Channel estimation for intra-cluster CSI is also considered, where we formulate a joint pilot allocation and user equipment (UE) selection problem to maximize the number of admitted UEs with fixed number of pilots. A novel pilot allocation algorithm is proposed by considering the multi-UE pilot interference. Then, we consider robust beam-vector optimization problem subject to UEs' data rate requirements and fronthaul capacity constraints, where the channel estimation error and incomplete inter-cluster CSI are considered. Simulation results demonstrate its superiority over the existing algorithms. |
Persistent Identifier | http://hdl.handle.net/10722/349246 |
ISSN |
DC Field | Value | Language |
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dc.contributor.author | Pan, Cunhua | - |
dc.contributor.author | Mehrpouyan, Hani | - |
dc.contributor.author | Liu, Yuanwei | - |
dc.contributor.author | Elkashlan, Maged | - |
dc.contributor.author | Nallanathan, Arumugam | - |
dc.date.accessioned | 2024-10-17T06:57:16Z | - |
dc.date.available | 2024-10-17T06:57:16Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Proceedings - IEEE Global Communications Conference, GLOBECOM, 2017, v. 2018-January, p. 1-6 | - |
dc.identifier.issn | 2334-0983 | - |
dc.identifier.uri | http://hdl.handle.net/10722/349246 | - |
dc.description.abstract | This paper deals with the unavailability of full CSI in ultra-dense user-centric TDD C-RAN. To reduce the channel training overhead, we consider the incomplete CSI case, where only large-scale inter-cluster CSI is available. Channel estimation for intra-cluster CSI is also considered, where we formulate a joint pilot allocation and user equipment (UE) selection problem to maximize the number of admitted UEs with fixed number of pilots. A novel pilot allocation algorithm is proposed by considering the multi-UE pilot interference. Then, we consider robust beam-vector optimization problem subject to UEs' data rate requirements and fronthaul capacity constraints, where the channel estimation error and incomplete inter-cluster CSI are considered. Simulation results demonstrate its superiority over the existing algorithms. | - |
dc.language | eng | - |
dc.relation.ispartof | Proceedings - IEEE Global Communications Conference, GLOBECOM | - |
dc.title | Joint Pilot Allocation and Robust Beam-Vector Design for Ultra-Dense TDD C-RAN | - |
dc.type | Conference_Paper | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/GLOCOM.2017.8254472 | - |
dc.identifier.scopus | eid_2-s2.0-85046350537 | - |
dc.identifier.volume | 2018-January | - |
dc.identifier.spage | 1 | - |
dc.identifier.epage | 6 | - |
dc.identifier.eissn | 2576-6813 | - |