Abstract
This paper investigates the detection error of radio frequency (RF)-watermark type transmitter identification (TxID) signal in a single frequency network (SFN). Based on the Cramer-Rao bound (CRB) of TxID detection, closed-form failure probabilities for TxID detection are derived. In order to reflect the practical network condition, the interference from Poisson-distributed out-of-guard interval transmitters is accounted for TxID detection failure probability (TDFP). The proposed approach consequently examines the possible TDFP gain that can be obtained by applying successive preamble cancellation to the TxID detection. Numerical results reveal that the performance of the preamble cancellation-assisted technique is dependent on the threshold signal-to-interference noise ratio (SINR) for preamble signal detection. Nevertheless, the assistance of preamble cancellation is verified to guarantee more than 4 dB improvement of TxID detection capability under practical preamble signal configurations.
Highlights
The modern broadcast systems are likely to be deployed single frequency network (SFN)-based, due to a lack of spectrum resources [1]–[5]
NUMERICAL RESULTS the detection failure performance of radio frequency (RF)-watermark type TxID is verified by numerical calculation based on the results in Section III and IV
The system of interest employed the RF-watermark type TxID signal injected in the host preamble signal, likewise to what is as defined in the Advanced Television System Committee (ATSC) 3.0 protocol
Summary
The modern broadcast systems are likely to be deployed single frequency network (SFN)-based, due to a lack of spectrum resources [1]–[5]. Co-existing Tx to the net receive channel gain when each Tx transmits different TxID signal at the same time This approach lies in the radio frequency (RF) layer based on spread spectrum transmissions [9], [10], unlike a signaling field insertion in the transport layer [11], [12]. Such type of TxID technologies has been called as an RF-watermark or a fingerprint technique. A theoretic analysis is addressed on the error performance of the preamble cancellation-assisted TxID detection (PCTD). )dx for Re(z) > 0 denotes the Gamma function
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