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Joint Water Filling-MRT Downlink Transmit Diversity for a Broadband Single-Carrier Distributed Antenna Network
Hiroki MATSUDA Kazuki TAKEDA Fumiyuki ADACHI
Publication
IEICE TRANSACTIONS on Communications
Vol.E93-B
No.10
pp.2753-2760 Publication Date: 2010/10/01 Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2753 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: distributed antenna network, transmit diversity, channel capacity, frequency-selective channel,
Full Text: PDF>>
Summary:
In this paper, joint water filling and maximal ratio transmission (joint WF-MRT) downlink transmit diversity for a single-carrier distributed antenna network (SC DAN) is proposed. The joint WF-MRT transmit weight allocates the transmit power in both transmit antenna dimension and frequency dimension, i.e., the power allocation is done both across frequencies based on WF theorem and across transmit antennas based on MRT strategy. The cumulative distribution function (CDF) of the channel capacity achievable by joint WF-MRT transmit diversity is evaluated by Monte-Carlo numerical computation method. The channel capacities achievable with joint WF-MRT, MRT, and WF transmit weight (WF transmit weight is done across transmit antennas and frequencies based on WF theorem) are compared. It is shown that the joint WF-MRT transmit weight provides the highest channel capacity among three transmit weights.
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