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We investigate physical-layer network coding for two-way relaying systems which employ multiple-input multiple-output (MIMO) techniques. For single-antenna cases, it has been previously verified that adaptive network coding, whose mapping rule is dependent on channel state information (CSI), can offer good performance for two-stage relaying protocols. In this paper, we evaluate gains achieved by adaptive...
Antenna subset selection methods are feasible to reduce the hardware complexity of multiple-input multiple-output (MIMO) systems. Numerous methods have been devised to resolve this problem. Most of these selection schemes were applied to specific system models and for frequency flat systems. In broadband systems like WiMAX (IEEE 802.16-2004), the overall channel under consideration is typically frequency...
In this paper, we analyze transmission techniques for multiple-input-multiple-output (MIMO) systems from a link-layer perspective using frame error rate (FER), frame loss rate, and link throughput metrics. We introduce two new layered space-time coding variants adapted for transmission at the frame level in MIMO systems with no channel state information (CSI) at the transmitter. We analytically demonstrate...
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