Performance of maximal ratio combining digital on-channel repeater for terrestrial DMB/DAB

Jeon, Seongmin; Yim, Zungkon; Jin, Hyeun-Pil; Choi, Jeung‐Yoon; Seo, Jong-Soo

doi:10.1109/bmsb.2013.6621748

Cited by 2 publications

(4 citation statements)

References 7 publications

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“…As expected, the three performance metrics defined in (17), (21) and (24), that is, the MRR, the ES and P u , depend on the overall SNR γ T : the higher γ T , the better the performance. Owing to practical implementation aspects, however, γ T is an upper bounded quantity, which conditions the achievable OCR performance.…”

Section: A Considerations On γ T γ E and γ Smentioning

confidence: 66%

“…In this paper we showed that both the MRR (17) and the probability of unstability (24) directly depend on γ T : It follows that all the results derived from (17) and (24) do not depend on the estimation technique, except for those shown in Fig. 9, which specifically consider the start-up phase duration.…”

Section: H Further Remarksmentioning

confidence: 86%

“…Finally, as for the probability of instability, we should remark that (24) does not depend explicitly on the number of echoes. The channel model impacts only through the normalized (to the sampling interval T s ) initial and final instants k m and k M of the equivalent coupling-channel impulse response (affecting the choice of D and N taps ).…”

Section: H Further Remarksmentioning

confidence: 99%

“…The upper bound (24) can be derived by (61) following a method similar to that presented in [42]. 19 It is sufficient to replace the terms e −j2π fkT s by z −k for any k. …”

Section: Appendix D Mrr Evaluation For Time Finite Coupling-channel Imentioning

confidence: 99%

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Design Criteria for FIR-Based Echo Cancellers

Zabini

Pasolini

Andrisano

2016

IEEE Trans. on Broadcast.

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The most relevant impairment experienced by on-channel repeaters (OCRs) in single frequency networks scenarios is the presence of a coupling-channel between the transmitting and receiving antennas, that generates unwanted echoes. This phenomenon causes a degradation of the repeated signal and, above all, could lead to the instability of OCRs, owing to the positive feedback that could result. For this reason, OCRs are usually equipped with echo canceller units, aimed at removing the coupling contributions. In this paper, we consider a realistic OCR setup and we analytically derive proper design criteria for echo-cancellers, showing the role of system parameters and implementation aspects on their performance. Here, in particular, we investigate the joint effect of the estimation noise and the finite precision arithmetic of digital systems, the system sensitivity to different design parameters and the relation between the echo-cancelling performance and the probability of instability.Index Terms-Echo canceller, on-channel repeater, single frequency network, relay, stability.

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Section: A Considerations On γ T γ E and γ Smentioning

confidence: 66%

Section: H Further Remarksmentioning

confidence: 86%

Section: H Further Remarksmentioning

confidence: 99%

“…The upper bound (24) can be derived by (61) following a method similar to that presented in [42]. 19 It is sufficient to replace the terms e −j2π fkT s by z −k for any k. …”

Section: Appendix D Mrr Evaluation For Time Finite Coupling-channel Imentioning

confidence: 99%

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