Power allocation for multi-point joint transmission with different node activeness

We study the power allocation problem for the downlink of a cooperative system with different node activeness, i.e., each receiving node requests for data transmission according to a certain probability. Data symbols of the active nodes are jointly transmitted from cooperative transmission points us...

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Published in2013 IEEE Wireless Communications and Networking Conference (WCNC) pp. 4220 - 4225
Main Authors Jingya Li, Makki, Behrooz, Svensson, Tommy, Eriksson, Thomas
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2013
Subjects
Cooperative systems
coordinated multi-point (CoMP)
Data communication
Downlink
Interference
joint transmission
Joints
Power allocation
random node activity
Resource management
Vectors
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ISBN9781467359382
1467359386
9781467359399
1467359394
ISSN1525-3511
DOI10.1109/WCNC.2013.6555255

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Abstract We study the power allocation problem for the downlink of a cooperative system with different node activeness, i.e., each receiving node requests for data transmission according to a certain probability. Data symbols of the active nodes are jointly transmitted from cooperative transmission points using zero-forcing precoding. The problem is cast in form of maximizing the ergodic achievable rate subject to per-transmit-point average total power constraints. The derived power allocation indicates that depending on the channel conditions and receiving nodes' activation probability, the optimal solution takes the form of either greedy power allocation or power sharing allocation.
AbstractList We study the power allocation problem for the downlink of a cooperative system with different node activeness, i.e., each receiving node requests for data transmission according to a certain probability. Data symbols of the active nodes are jointly transmitted from cooperative transmission points using zero-forcing precoding. The problem is cast in form of maximizing the ergodic achievable rate subject to per-transmit-point average total power constraints. The derived power allocation indicates that depending on the channel conditions and receiving nodes' activation probability, the optimal solution takes the form of either greedy power allocation or power sharing allocation.
Author Makki, Behrooz
Svensson, Tommy
Jingya Li
Eriksson, Thomas
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Snippet We study the power allocation problem for the downlink of a cooperative system with different node activeness, i.e., each receiving node requests for data...
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SubjectTerms Cooperative systems
coordinated multi-point (CoMP)
Data communication
Downlink
Interference
joint transmission
Joints
Power allocation
random node activity
Resource management
Vectors
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Title Power allocation for multi-point joint transmission with different node activeness
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