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Hokkaido University Collection of Scholarly and Academic Papers >
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A Throughput Evaluation of an Over-Distributed Antenna System with Limited Pilot Resources
| Title: | A Throughput Evaluation of an Over-Distributed Antenna System with Limited Pilot Resources |
| Authors: | Nakanishi, Yuki Browse this author | | Nishimura, Toshihiko Browse this author →KAKEN DB | | Ohgane, Takeo Browse this author →KAKEN DB | | Ogawa, Yasutaka Browse this author →KAKEN DB | | Ohwatari, Yusuke Browse this author | | Kishiyama, Yoshihisa Browse this author |
| Keywords: | distributed antenna system | | multiuser MIMO system | | throughput | | pilot resource |
| Issue Date: | Aug-2015 |
| Publisher: | The Institute of Electronics, Information and Communication Engineers (IEICE) |
| Journal Title: | IEICE transactions on communications |
| Volume: | E98B |
| Issue: | 8 |
| Start Page: | 1465 |
| End Page: | 1473 |
| Publisher DOI: | 10.1587/transcom.E98.B.1465 |
| Abstract: | A distributed antenna system, where the antennas of a base station are spatially distributed throughout the cell, can achieve better throughput at the cell edge than a centralized antenna system. On the other hand, the peak throughput degrades in general because each remote antenna unit has only a few antennas. To achieve both high peak and cell-edge throughputs, we need to increase the total number of antennas. However, this is not easy due to the pilot resource limitation when we use frequency division duplexing. In this paper, we propose using more antennas than pilot resources. The number mismatch between antennas and signals is solved by using a connection matrix. Here, we test two types of connection matrix: signal-distributing and signal-switching. Simulation results show that the sum throughput is improved by increasing the number of antenna elements per remote antenna unit under a constraint on the same number of pilot resources. |
| Rights: | copyright©2015 IEICE |
| Type: | article |
| URI: | http://hdl.handle.net/2115/59898 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 西村 寿彦
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