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Using the hexagonal grid based two-interferer model we derive a simple analytical expression for the max-SIR conditional outage probability in an interference-limited cellular network. The derived probability is compared to the one that is obtained by simulation from the 19 base stations two-ring hexagonal grid. The comparison reveals that the derived probability matches the actual one to within 0–2...
We propose a simple, yet accurate, interference prediction model using the widely used two-ring hexagonal network layout in the absence or presence of shadowing. The proposed model only considers two dominant interferers out of the 18 ones that surround the serving base station. The proposed model, in contrast to the fluid model, takes the radial direction into account. This makes our proposed model...
We show that while the multiplexing effect of the spatial multiplexing MIMO channel has the greatest influence on ergodic capacity at infinite SNR, the contribution of diversity to enhancing ergodic capacity at finite SNR is comparable to or greater than that of multiplexing as the number of antennas increases to a moderate level. For instance, we show that the contribution of diversity to ergodic...
We present outage capacity analysis and results for the hybrid MIMO scheme we first proposed in. We recently analyzed and demonstrated the FER effectiveness of the proposed algorithm. We also showed that its parallel architecture allows for the tradeoff between complexity, performance and power consumption on a packet-by-packet basis. In this paper we show that despite the fact the Alamouti code (a...
Fourth generation (4G) and beyond-4G wireless standards must support sub-1Gbps data rates with peak bandwidth efficiencies of up to 30 bit/s/Hz. It is widely recognized that the use of multiple antennas on both ends of the wireless link, commonly referred to as MIMO, is the technology that will make this a reality. The problem is that most existing MIMO algorithms are either too complex to be able...
We propose an efficient 2Ntimes2N MIMO detection algorithm where the transmit signals are grouped in pairs and separately coded using the standard Alamouti space-time code. At the receiver, one or more QR decompositions are performed and the upper triangular property of the R matrices so obtained is exploited in order to successively decode the transmitted symbols starting with those interference-free...
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