講演名 2008-10-22
A Throughput Enhancement Scheme for a Millimeter-wave Gbps WPAN Cross Layer Design
,
PDFダウンロードページ PDFダウンロードページへ
抄録(和)
抄録(英) This paper proposes the Virtual Time-slot Allocation (VTSA) scheme for throughput enhancement to realize a Gbps-order wireless personal area network (WPAN) system in the millimeter-wave realistic residential multipath environment. In the conventional time division multiple access (TDMA) WPAN system, the network controller, known as the piconet coordinator (PNC) allocates time-slots for devices in the network to establish communication links, one time-slot for one communication link. In this paper, the proposed VTSA scheme enables a single time-slot to be reused for multiple communication links simultaneously, thus significantly increase system throughput. However, this causes co-channel interference (CCI) among the communication links occupying the same time-slot. The proposed VTSA scheme is therefore designed to optimize the throughput-CCI tradeoff, taking advantage on the large path loss among communication links, a unique characteristic in the millimeter-wave band. The proposed scheme is a cross layer design involving the medium access control (MAC) layer and the physical (PHY) layer. The MAC layer is responsible for executing the VTSA algorithm, a protocol that manages the rules and procedures for throughput-CCI tradeoff in reusing the time-slots. Two time-slot reuse methods are proposed and compared in this paper, namely the minimum-CCI slotting method and the random slotting method. The PHY layer is responsible for constantly measuring and reporting the CCI due to time-slot reuse in different millimeter-wave channel conditions. As a result, it is found that the VTSA scheme is capable of increasing the system throughput as much as approximately 30% in the additive white Gaussian noise (AWGN), line-of-sight (LOS) and non-line-of-sight (NLOS) multipath channel. It is also found that the minimum-CCI slotting method has 10% better performance as compared to the random slotting method.
キーワード(和)
キーワード(英) virtual time-slot allocation / millimeter-wave / Gbps / cross layer / WPAN / co-channel interference
資料番号 RCS2008-105
発行日

研究会情報
研究会 RCS
開催期間 2008/10/15(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) A Throughput Enhancement Scheme for a Millimeter-wave Gbps WPAN Cross Layer Design
サブタイトル(和)
キーワード(1)(和/英) / virtual time-slot allocation
第 1 著者 氏名(和/英) / Chin-Sean SUM
第 1 著者 所属(和/英)
National Institute of Information and Communications Technology (NICT)
発表年月日 2008-10-22
資料番号 RCS2008-105
巻番号(vol) vol.108
号番号(no) 249
ページ範囲 pp.-
ページ数 6
発行日