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Delay Analysis of Spatially-Coded MIMO-ZFBF with Retransmissions in Random Networks. (arXiv:1901.11067v1 [cs.IT])
来源于:arXiv
For a low-mobile Poisson bipolar network and under
line-of-sight/non-line-of-sight (LOS/NLOS) path-loss model, we study repetitive
retransmissions (RR) and blocked incremental redundancy (B-IR). We consider
spatially-coded multiple-input multiple-output (MIMO) zero-forcing beamforming
(ZFBF) multiplexing system, whereby the packet success reception is determined
based on the aggregate data rate across spatial dimensions of the MIMO system.
Characterization of retransmission performance in this low-mobile configuration
is practically important, but inherently complex due to a substantial rate
correlation across retransmissions and intractability of evaluating the
probability density function (pdf) of aggregate data rate. Adopting tools of
stochastic geometry, we firstly characterize the rate correlation coefficient
(RCC) for both schemes. Our results show that, compared to RR scheme, B-IR
scheme has higher RCC while its coverage probability is substantially larger.
We demonstrate that t 查看全文>>