LoRa Symbol Error Rate Under Non-Aligned Interference

In this work, we examine the performance of the LoRa chirp spread spectrum modulation in the presence of both additive white Gaussian noise and interference from another LoRa user. To this end, we extend an existing interference model to the more realistic case where the interfering user is neither chip- nor phase-aligned with the signal of interest and we derive an expression for the SER. We show that the existing interference model overestimates the effect of interference on the error rate. Moreover, we derive a low-complexity approximate formula that can significantly reduce the complexity of computing expression.


Published in:
Conference Record Of The 2019 Fifty-Third Asilomar Conference On Signals, Systems & Computers, 1957-1961
Presented at:
53rd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Nov 03-06, 2019
Year:
Jan 01 2019
Publisher:
New York, IEEE
ISSN:
1058-6393
ISBN:
978-1-7281-4300-2
Keywords:
Laboratories:




 Record created 2020-07-26, last modified 2020-07-27


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