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題名 Space-time-frequency Domain Water-filling in MIMO-OFDM Fading System
作者 Hu Yahui;Kuo Guomei;郭更生
日期 2007-04
上傳時間 14-Jan-2009 16:42:20 (UTC+8)
摘要 In this paper, we have derived the form of the maximum capacity for MIMO-OFDM system by adaptively allocating power in space, time and frequency domains in the case of perfect channel side information at the receiver (CSIR) and a zero-mean spatially white (ZMSW) channel distribution at the transmitter. Both the effects of Rayleigh fast fading and shadowing on the ergodic capacity are considered. The ergodic capacities achieved by the three different power allocation schemes, filling water in space-time-frequency domain, filling water in space-frequency domain and equally allocating power, are compared. For the ergodic capacity, the optimal power allocation scheme is filling water in space-time-frequency domain, which can obtain the maximal capacity as well as reduce the computation complexity.
關聯 Proc. of 2007-Spring IEEE Vehicular Technology Conference (VTC 2007-Spring)
資料類型 conference
DOI http://dx.doi.org/10.1109/VETECS.2007.510
dc.creator (作者) Hu Yahui;Kuo Guomei;郭更生en_US
dc.date (日期) 2007-04en_US
dc.date.accessioned 14-Jan-2009 16:42:20 (UTC+8)-
dc.date.available 14-Jan-2009 16:42:20 (UTC+8)-
dc.date.issued (上傳時間) 14-Jan-2009 16:42:20 (UTC+8)-
dc.identifier.uri (URI) https://nccur.lib.nccu.edu.tw/handle/140.119/24883-
dc.description.abstract (摘要) In this paper, we have derived the form of the maximum capacity for MIMO-OFDM system by adaptively allocating power in space, time and frequency domains in the case of perfect channel side information at the receiver (CSIR) and a zero-mean spatially white (ZMSW) channel distribution at the transmitter. Both the effects of Rayleigh fast fading and shadowing on the ergodic capacity are considered. The ergodic capacities achieved by the three different power allocation schemes, filling water in space-time-frequency domain, filling water in space-frequency domain and equally allocating power, are compared. For the ergodic capacity, the optimal power allocation scheme is filling water in space-time-frequency domain, which can obtain the maximal capacity as well as reduce the computation complexity.-
dc.format application/en_US
dc.language enen_US
dc.language en-USen_US
dc.language.iso en_US-
dc.relation (關聯) Proc. of 2007-Spring IEEE Vehicular Technology Conference (VTC 2007-Spring)en_US
dc.title (題名) Space-time-frequency Domain Water-filling in MIMO-OFDM Fading Systemen_US
dc.type (資料類型) conferenceen
dc.identifier.doi (DOI) 10.1109/VETECS.2007.510en_US
dc.doi.uri (DOI) http://dx.doi.org/10.1109/VETECS.2007.510en_US