Cellular networks that are traditionally designed for human-type communication (HTC) have the potential to provide cost effective connectivity machine-type (MTC). However, MTC is characterized by unprecedented traffic in cellular networks, thus posing a challenge its successful incorporation. In this work, we propose unified framework amicable coexistence of and HTC. We consider heterogeneous n...

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In recent times, transmit diversity has been proposed in various forms for many different communication systems. In this paper, we shall investigate, in particular the use of space-time transmit diversity (STTD) for coded OFDM systems using space-time block coding (STBC). With such an approach the STBC receiver must use one or more adjacent pilots to obtain orthogonal channel estimates from the...