Space Shift Keying for LOS Communication at mmWave Frequencies

作者：Liu Peng^*; Springer Andreas

来源：IEEE Wireless Communications Letters, 2015, 4(2): 121-124.

DOI：10.1109/LWC.2014.2381671

• Line-of-sight (LOS) communication
• millimeter-wave (mmWave) communication
• MIMO
• space shift keying (SSK)
• spatial modulation (SM)

We use space shift keying (SSK), which is the simplest form of spatialmodulation (SM), to present and analyze the idea of spatial modulation in line-of-sight (LOS) conditions. We show that SSK can operate effectively in LOS conditions provided that the antennas are properly placed at TX and RX such that a high-rank LOS-MIMO channel is constructed. The operating conditions for LOS-SSK with parallel uniform linear arrays are established and two schemes, namely orthogonal SSK and bi-orthogonal SSK, are introduced. The bit error probabilities for both methods are derived and given in closed form. It is shown that LOS-SSK (more generally LOS-SM) is a promising technique and might especially be attractive in millimeter-wave communications which, due to its high frequency and small wavelength, inherently prefers LOS transmission and also enables packing of a large number of antennas in terminals.

• 出版日期2015-4