講演名 2013-12-19
Many to One Transport Capacity of Orthogonal Wireless Sensor Networks based on I-MMSE
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抄録(和)
抄録(英) In this report, we investigate the properties of data gathering in wireless sensor networks, in terms of both capacity and power allocation strategy. We consider a scenario in which a number of sensors observe a target being estimated at fusion center (FC) using minimum mean-square error (MMSE) estimator. Based on the relationship between mutual information and MMSE (I-MMSE), we derive the capacity of data gathering in orthogonal multiple access channel (MAC) model. Considering power constraint, we derive the capacity under two scenarios: equal power allocation and optimal power allocation. We also provide the upper bound of capacity as a benchmark. We show in the simulation that the optimal method outperforms the equal power method. Particularly, the optimal power method has more benefit than the equal power method when it is applied with the limited power budget. The optimal power method can also be used for conserving the energy of the sensors and extending sensor's lifetime.
キーワード(和)
キーワード(英) Capacity of data gathering / estimation / power constraint / orthogonal multiple access channel (MAC)
資料番号 RCS2013-227
発行日

研究会情報
研究会 RCS
開催期間 2013/12/11(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
幹事氏名(和)
幹事氏名(英)
幹事補佐氏名(和)
幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 Radio Communication Systems (RCS)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) Many to One Transport Capacity of Orthogonal Wireless Sensor Networks based on I-MMSE
サブタイトル(和)
キーワード(1)(和/英) / Capacity of data gathering
第 1 著者 氏名(和/英) / Ajib Setyo ARIFIN
第 1 著者 所属(和/英)
Graduate School of Science and Technology, Keio University
発表年月日 2013-12-19
資料番号 RCS2013-227
巻番号(vol) vol.113
号番号(no) 361
ページ範囲 pp.-
ページ数 5
発行日