Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 2

LTE-A Related Publications

2 Integrated Power Saving for Multiple Relays and UEs in LTE-TDD

Authors: Yi-Ting Mai, Chun-Chuan Yang, Jeng-Yueng Chen, Chen-Ming Yang

Abstract:

In this paper, the design of integrated sleep scheduling for relay nodes and user equipments under a Donor eNB (DeNB) in the mode of Time Division Duplex (TDD) in LTE-A is presented. The idea of virtual time is proposed to deal with the discontinuous pattern of the available radio resource in TDD, and based on the estimation of the traffic load, three power saving schemes in the top-down strategy are presented. Associated mechanisms in each scheme including calculation of the virtual subframe capacity, the algorithm of integrated sleep scheduling, and the mapping mechanisms for the backhaul link and the access link are presented in the paper. Simulation study shows the advantage of the proposed schemes in energy saving over the standard DRX scheme.

Keywords: relay, TDD, LTE-A, Power Saving

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1 Coordinated Multi-Point Scheme Based On Channel State Information in MIMO-OFDM System

Authors: Hyoung-Kyu Song, Su-Hyun Jung, Chang-Bin Ha

Abstract:

Recently, increasing the quality of experience (QoE) is an important issue. Since performance degradation at cell edge extremely reduces the QoE, several techniques are defined at LTE/LTE-A standard to remove inter-cell interference (ICI). However, the conventional techniques have disadvantage because there is a trade-off between resource allocation and reliable communication. The proposed scheme reduces the ICI more efficiently by using channel state information (CSI) smartly. It is shown that the proposed scheme can reduce the ICI with fewer resources.

Keywords: LTE-A, CoMP, Adaptive beam forming, ICI reduction

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