and Joel Grotz 6 SES, Betzdorf, Luxembourg, L-6815 DVB-SH is a hybrid satellite-terrestrial system combining a satellite component and a complementary ground component to provide service in all types of environments, i.e., outdoor and indoor coverage in urban, sub-urban and rural. This paper reports the studies on multiple-input multiple-output (MIMO) extension to the existing DVB-SH standard. MIMO techniques are considered in this paper for achieving increased spectral efficiency and reliability in the challenging satellite and hybrid channel environments. Nomenclature APSK = Amplitude Phase Shift Keying BER = Bit Error Rate CGC = Complementary Ground Component DVB-SH = Digital Video Broadcast-Satellite to Handheld DVB-NGH = Digital Video Broadcast-Next Generation Handheld ESR5(20) = Error Second Ratio at 5% in 20 Seconds 1 Research Associate, Interdisciplinary Centre for Security, Reliability and Trust (SnT), 6, Rue Richard-Coudenhove Kalergi, non-member 2 Senior Design Engineer, Tutkijantie 7, non-member 3 Communications Systems Engineer, TEC-ETC, Keplerlaan 1, non-member 4 Senior Specialist, Tutkijantie 7, non-member 5 Project Manager. Department of Communications Engg., Erkki Koiso-Kanttilan katu 3, non-member 6 Senior System Engineer, SES Chateau de Betzdorf, non-member