Deterministic method of information transmission channel prediction in multipath environments

• Published in: 2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems pp. 1 - 10
• Main Authors: Zakharov, P.N., Mikhailov, E.V., Korolev, A.F., Sukhorukov, A.P.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.11.2009
• Subjects: Accuracy; BER; Binary phase shift keying; Bit error rate; capacity; Channel capacity; coverage; data rate; deterministic; Indoor environments; indoor propagation; network planning; OFDM; outdoor propagation; Predictive models; propagation prediction; Quadrature amplitude modulation; Radio broadcasting; Radio propagation; ray tracing; site-specific; throughput
• ISBN: 9781424439850; 142443985X
• DOI: 10.1109/COMCAS.2009.5385978

The results of prediction using radio propagation models typically represent physical characteristics of a radio channel. The commonly exploited use of these characteristics as a metric in network planning, instead of rigorous system-level channel parameters, may lead to non-satisfactory results for modern communication and broadcast systems. In the current contribution, a general method for prediction of system-level channel characteristics (BER, data rate, etc.) is proposed, based on site-specific propagation models, deterministic system models and spatial statistical generalization. Validation of the method with direct measurements in a complex indoor environment (for BPSK, QAM, OFDM QAM) has shown its high accuracy (below 21 % RMS error of local mean channel capacity prediction). Another subject of the current work is the experimental investigation of the dependence of system-level characteristics prediction accuracy upon spatial detailing of prediction, which demonstrated the considerable enhancement of accuracy with a decrease in detailing. The proposed method may be directly applied to network planning: it provides means for metric calculation and coverage maps estimation.