On-channel repeater for digital television broadcasting service

Performance of an Echo Canceller and Channel Estimator for On-Channel Repeaters in DVB-T/H Networks

“…The main purpose of an on-channel repeater [5], [6], [20] is to extend the coverage of the DVB-T/H network in areas where services are inaccessible. The on-channel repeater receives DVB-T/H signal off air, amplifies it and then retransmits it on the same frequency as received.…”

Channel estimation and carrier recovery in the presence of phase noise in OFDM relay systems

“…This assumption is practical since there are various radio frequency (RF) amplifiers that can operate at high carrier frequencies and can be utilized in fullduplex relaying networks, e.g., Mini-Circuits AVA-24+ with a frequency range of 5-20 GHz [10]. 2) Half-duplex relaying: In this setup, it is assumed that the relay forwards its received signal on a different carrier frequency and does not convert it to baseband, i.e., the relay applies on-frequency/on-channel RF relaying [11]. Moreover, the difference between the receive and transmit carrier frequencies are assumed to be small to enable the application of a low PN oscillator at the relay.…”

Fast Adaptive Beamforming with Smart Antenna for Radio Frequency Repeater

“…In a wireless communication system, radio frequency repeater (RFR) is widely used to extend the network coverage due to easy setting-up, less expensive and without increasing the number of base station [1]. Block diagram of the repeater is shown in Fig.…”