Block Interleaved Chirp Spreading LoRa Modulation Over Multipath Channels

被引：1
|
作者：
Liu, Jiaojiao [1 ,2 ]
Yan, Yuanmei [1 ,2 ]
Huang, Peng [1 ,2 ]
Ma, Biyun [1 ,2 ]
Yu, Hua [1 ,2 ]
机构：
[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Peoples R China
[2] Minist Nat Resources, Key Lab Marine Environm Survey Technol & Applicat, Guangzhou 510300, Peoples R China
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2024年 / 73卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Symbols; Interference; Bit error rate; Modulation; Noise; Demodulation; Chirp; Bit error rate (BER); block interleaved chirp spreading; lora; multipath channel (MPC);
D O I：
10.1109/TVT.2024.3387910
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
For actual multipath channels, inter symbol interference (ISI) may seriously degrade LoRa performance. With the path overlapping interference analyzed, the upper bound of LoRa bit error rate (BER) has been approximated. Then we propose a block interleaved chirp spreading LoRa (BICS-LoRa) modulation to split the multipath interference into small ones at different positions. The probability of interference peak being greater than the direct path peak is reduced, so does the BER. Experiment results show BICS-LoRa can reduce the peak of multipath interference and may result in BER reduction. Besides, the performance gain increases with SF value in most cases.
引用
收藏
页码：10840 / 10844
页数：5
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