Performance Evaluation of Offset Spatial Modulation Systems With Practical Channel Estimation

• Offset spatial modulation (OSM) is an attractive multiple-input–multiple-output (MIMO) transmission scheme, which alleviates the switching frequency limitation of the radio frequency chain in the spatial modulation technology. In this article, we investigate the bit error performance of OSM in the presence of imperfect channel estimation toward a practical transmission scenario. More specifically, with the aid of union bound technique, a general performance analysis framework of the OSM system with channel estimation errors is proposed. Based on the above analysis framework, the upper bounds of bit error rate for the static and dynamic modes of OSM are both derived, respectively. Finally, simulation results demonstrate that the analytical bounds are tight for a wide range of signal-to-noise ratio (SNR) and variable system configurations. 

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)

Nyckelord

Imperfect channel estimation

multiple-input multiple-output (MIMO)

offset space shift keying (OSSK)

offset spatial modulation (OSM)

performance analysis

radio frequency (RF) switching problem

single RF

Bit error rate

Channel estimation

Computer software maintenance

Errors

Modulation

Radio transmission

Switching frequency

Analysis frameworks

Channel estimation errors

Frequency limitation

Radio frequency chains

Spatial modulations

Transmission schemes

Signal to noise ratio

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)