Proceedings Article10.1109/GLOCOM.2013.6831733
Distributed inter-cluster interference management for CoMP-based cellular networks
Sandra Lagen,Adrian Agustin,Josep Vidal +2 more
- 01 Dec 2013
- pp 4204-4209
13
TL;DR: New iterative procedures based on channel reciprocity that avoid such estimation by exploiting the received signal in the UL are described, provided that transmit and receive filters in DL and UL are properly designed.
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Abstract: This paper proposes distributed inter-cluster interference management procedures for 1 Coordinated Multi-Point (CoMP) Time Division Duplexing (TDD) cellular networks, in which a set of base stations (BSs), that form a cluster, cooperate in the downlink (DL) and uplink (UL) transmissions to communicate with a group of users while causing interference to users in neighbor clusters. In order to reduce the complications associated to the estimation of the interfering channels, we describe new iterative procedures based on channel reciprocity that avoid such estimation by exploiting the received signal in the UL, provided that transmit and receive filters in DL and UL are properly designed. Simulations show that proposed techniques attain significant DL and UL spectral efficiency gains. Furthermore, an analysis of imperfect channel state information (CSI) at both ends is included, evidencing the robustness of the proposed procedures. Considerations on convergence are included.
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Citations
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Decentralized Coordinated Precoding for Dense TDD Small Cell Networks
TL;DR: A decentralized coordinated precoding (D-CoP) for downlink (DL) weighted sum-rate maximization in dense MIMO TDD small cell networks (SCNs) is proposed, which is fully scalable, avoids estimation of the interfering channels, and does not require information exchange between SeNBs.
16
Distributed inter-cluster interference management for CoMP-based cellular networks
Sandra Lagen,Adrian Agustin,Josep Vidal +2 more
- 01 Dec 2013
TL;DR: New iterative procedures based on channel reciprocity that avoid such estimation by exploiting the received signal in the UL are described, provided that transmit and receive filters in DL and UL are properly designed.
13
Distributed User-Centric Clustering and Precoding Design for CoMP Joint Transmission
Sandra Lagen,Adrian Agustin,Josep Vidal,Beatriz Soret,Klaus I. Pedersen +4 more
- 01 Dec 2014
TL;DR: This paper addresses distributed interference management in downlink of multi-cell multiple- input multiple-output (MIMO) time division duplex (TDD) networks by proposing a distributed procedure whereby only channel matrices towards a limited number of candidate BSs per user are required while interference is still controlled by using the signal received from an uplink transmission.
11
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