Transmit-antenna selection for spatial multiplexing with ordered successive interference cancellation

Quantized Principal Component Selection Precoding for Limited Feedback Spatial Multiplexing

“…For reference, the PCS precoding is presented and achieves comparable capacity to the closedloop MIMO, which transmits via the singular vectors and allocates power by a water-filling solution. For comparison, a transmit antenna selection [8] is also considered. The transmit antenna selection selects the optimal active antenna subset based on the capacity criterion and uses n T feedback bits each representing whether the corresponding antenna is used for transmission.…”

“…The multi- mode precoding adjusts the number of substreams using precoder codebooks, finite sets of precoder matrices, for each of the supported substream configurations. We use the precoder codebooks in [10], in which 4 precoder codebooks 2,3,4 , each consisting of 8 precoding matrices, i.e., 8 }, are designed by the Grassmannian subspace packing criteria. The optimal precoding matrix maximizing the capacity is selected among 32 precoding matrices and fed back to the transmitter by using 5 feedback bits.…”

“…For spatial multiplexing with transmit antenna selection a "reverse detection ordering" based serial antenna selection procedure was proposed in our previous study [8]. In [8] it was demonstrated that this procedure leads to a near-optimal active antenna subset with considerably reduced complexity.…”

“…In [8] it was demonstrated that this procedure leads to a near-optimal active antenna subset with considerably reduced complexity. Since transmit antenna selection can be translated as basis selection on a given set of coordinates defined by a basis set consisting of n T column vectors of I nT , the "reverse detection ordering" based serial antenna selection procedure can be directly applied to the case of basis selection in the selected basis set E m * .…”

Capacity of Multicarrier Multilayer Broadcast and Unicast Hybrid Cellular System with Independent Channel Coding over Subcarriers

“…OFDM) has been widely used in most of the broadband communication systems (DVB, WiMAX, 3G-LTE) [7]. Compared to the single carrier system, multicarrier transmission supports broadband data without complicated time-domain equalization [8]. Due to its advantages and vast applications, many results have focused on the incorporation of the multicarrier transmission in hybrid network.…”