2013 IEEE International Conference on Acoustics, Speech and Signal Processing 2013
DOI: 10.1109/icassp.2013.6638586
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Space time interference alignment scheme for the MIMO BC and IC with delayed CSIT and finite coherence time

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Cited by 6 publications
(5 citation statements)
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“…Until recently, the only scheme in which the DoF are not affected by FB delay was the scheme of [6] for the MISO BC/IC, with a MIMO extension in [22] where the scheme is termed Space-Time IA (STIA). The ingredients of STIA are:…”
Section: Dof Obtained With Froi Channel Models (Cms)mentioning
confidence: 99%
“…Until recently, the only scheme in which the DoF are not affected by FB delay was the scheme of [6] for the MISO BC/IC, with a MIMO extension in [22] where the scheme is termed Space-Time IA (STIA). The ingredients of STIA are:…”
Section: Dof Obtained With Froi Channel Models (Cms)mentioning
confidence: 99%
“…Concerning the K-user MISO broadcast channel (BC) networks, [6] firstly proposed space-time interference alignment scheme (STIA) with moderately delayed CSIT, it utilized both physical-layer network coding (PNC) and IA to eliminate interference in space-time domain. Then, the study was extended to different application scenarios in [7]- [9]. In specific, [7] put forward the distributed space-time interference alignment (DSTIA) where the scheme was fit for both 2-user SISO X-channel (XC) and 3-user SISO interference channel (IC).…”
Section: Introductionmentioning
confidence: 99%
“…The results indicated that, when each transmitter was equipped with K − 1 antennas to serve for K users, the upper bound of DoF could be attained, i.e., K − 1 DoF. Subsequently, the DSTIA got applied in more complicated networks, like K-user MIMO BC and K-user MIMO IC networks [9]. Although the improvements of DoF via STIA were considerable, the precoding matrices design relied on the relationship between feedback delay and coherent time, i.e., the time span of feedback delay must be shorter than the time span of coherent time.…”
Section: Introductionmentioning
confidence: 99%
“…The core idea of the STIA is that, in block fading model, the transmitter combines IA technique with physical network coding (PNC) to eliminate interference in space-time domain. Subsequent studies achieve extensions of the STIA to different application scenarios [15]- [17]. In particular, [15] puts forward distributed STIA (DSTIA) for 2 × 2 user SISO X-channel (XC) and 3 × 3 user SISO interference channel (IC) which achieves 4/3 and 6/5 DoF respectively.…”
Section: Introductionmentioning
confidence: 99%
“…[16] introduces DSTIA into the K-user MISO IC and achieves K −1 DoF. For K-user MIMO BC and K-user MIMO IC, [17] analyzes the trade-off strategy between achievable DoF and the range of CSI delay. However, the DoF gain of the STIA is restricted to the time span of the feedback delay, i.e., the time span of the feedback delay cannot exceed the time span of the coherent time.…”
Section: Introductionmentioning
confidence: 99%