Capacity Versus Bit Error Rate Trade-Off in the DVB-S2 Forward Link

Capacity Versus Bit Error Rate Trade-Off in the DVB-S2 Forward Link

The paper presents an approach to optimize the use of satellite capacity in DVB-S2 forward links. By reducing the so-called safety margins, in the adaptive coding and modulation technique, it is possible to increase the spectral efficiency at expenses of an increased BER on the transmission. The work shows how a system can be tuned to operate at different degrees of this trade-off, and also the...

Symbol Rate Estimation for DVB-S2 Broadcasting

Analysis of Bit Error Rate Improvement in MFSK Communication Link

Data rate, tolerable bit error rate or frame error rate and range & coverage are the key performance requirement of a communication link. In this paper performance of MFSK link is analyzed in terms of bit error rate, number of errors and total number of data processed. In the communication link model proposed, which is implemented using MATLAB block set, an improvement in BER is observed. Diffe...

Phase Noise Influence on Bit Error Rate, Cut-off Rate and Capacity of M-QAM OFDM Signaling

The performance of a bit-interleaved coded OFDM system disturbed by phase noise is investigated. The sensitivity is calculated as a function of the 3 dB phase noise bandwidth for several QAM constellations. The results for BER and cut-off rate (capacity) are closely related and illustrate the performance limits and required oscillator stability for an AWGN and an exemplary fading channel.

Bit Error Rate Monitoring

Today's telecommunications needs call for faster and more reliable networks. Optical transmission has allowed great advances in creating faster and more reliable global communications networks. Most optical networks are based on the SONET (North American) and SDH (International) standards. For my thesis, I have designed, implemented, and tested a bit-error rate monitoring circuit, compliant wit...