Key result
Baseband AGC algorithm achieves a ~7% packet error rate with no false alarms.
Why the study?
IEEE802.11p requires high performance signal detectors due to rapidly varying channel impulse responses in vehicular environments, but optimal detection methods need evaluation.
Absolute Event Rate: 6.75% vs 4.1%
Fully I/Q signal detection provides the best performance for IEEE802.11p modems in vehicular environments.
This paper has reviewed the performances of various AGCs which can be adopted in IEEE802.11p modems. IEEE802.11p, a high speed mobile communication standard for vehicles, requires high performance signal detector since the channel impulse responses are varied rapidly in time. In order to select the optimal signal detector, we simulated the performances of three detection methods. One is using RSSI signal, the other is using RSSI signal and I/Q signal, and the third is using I/Q signal through the Monte Carlo simulation. We evaluated the performances of the algorithms using our own system based on MAX 2829 transceiver(MAXIM IntegratedTM ) in a real vehicular environment. As a result, the experiment using Fully I/Q signal derives the most excellent performance with the lowest minimum receiver sensitivity, packet error rate (PER) and false alarm rate (FAR).
No takes yet. Share an insight, caveat, or question.
Jin et al. (2014) studied this question. Baseband signal only AGC algorithm vs. RSSI only and RSSI+Baseband AGC algorithms was evaluated on Packet Error Rate (PER). The proposed AGC algorithm using only baseband signals achieved a packet error rate of 6.75% and a false alarm rate of 0.00% with a minimum receiver sensitivity of -94 dBm.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: