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Conference Paper
Performance Analysis for Channel Estimation in Partial Co-Channel Environments
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- Authors
- Jihyung Kim, Moon-Sik Lee
- Issue Date
- 2014-09
- Citation
- International Symposium on Wireless Personal Multimedia Communications (WPMC) 2014, pp.306-309
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we describe a guideline of pilot sequence design for multi-channel estimation using uplink DMRS of LTE-A in the partial co-channel resource allocation. In the D2D or small cell system the partial co-channel environment can be frequently occurred, and thus multi-channel estimation is required for interference mitigation. We consider three methods with uplink DMRS for channel estimation in the partial co-channel allocation: a direct application, a separated pilot sequence design, and a suitable matching between pilot sequences. The performance analysis presents that the direct application of uplink DMRS results in serious performance degradation in the partial co-channel allocation, while the separated pilot sequence design and the suitable matching between pilot sequences maintain the channel estimation performance.