Bit Error Rate Closed-Form Expressions for LoRa Systems under Nakagami and Rice Fading Channels

We derive exact closed-form expressions for Long Range (LoRa) bit error probability and diversity order for channels subject to Nakagami-m, Rayleigh and Rician fading. Analytical expressions are compared with numerical results, showing the accuracy of our proposed exact expressions. In the limiting case of the Nakagami and Rice parameters, our bit error probability expressions specialize into the non-fading case.

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Bit Error Rate Evaluation of SCMA in Rician Fading Channels Considering Presence of Co-Cell Interference

2020 IEEE ANDESCON ◽

10.1109/andescon50619.2020.9271974 ◽

2020 ◽

Author(s):

Dennis Lara Hernandez ◽

Efren Ona Proano ◽

Henry Carvajal Mora ◽

Nathaly Orozco Garzon ◽

Celso Iwata Frison

Keyword(s):

Fading Channels ◽

Bit Error Rate ◽

Error Rate ◽

Rician Fading ◽

Rate Evaluation ◽

Rician Fading Channels

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Bit-Error-Rate Analysis of Raptor Codes over Rician Fading Channels

Journal of Electrical and Computer Engineering ◽

10.1155/2020/2685075 ◽

2020 ◽

Vol 2020 ◽

pp. 1-8

Author(s):

Jingke Dai

Keyword(s):

Fading Channels ◽

Bit Error Rate ◽

Error Rate ◽

System Performance ◽

Gaussian Approximation ◽

Rician Fading ◽

Raptor Codes ◽

Erasure Channels ◽

Rate Analysis ◽

Rician Fading Channels

The bit-error-rate expressions of nonsystematic Raptor (NR) codes and systematic Raptor (SR) codes over Rician fading channels are first derived using a Gaussian approximation (GA) approach. These BER expressions provide a significant reduction in computational complexity for analyzing system performance when compared with simulation and discretized density evolution (DDE). As shown by the asymptotic analysis, the NR codes originally designed for binary erasure channels still have good performance on Rician fading channels but SR codes do not. Therefore, the degree distributions of SR codes are specifically optimized on Rician channels which are superior to the existing SR codes and comparable to NR codes.

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Closed-form expression of bit error rate in dual-hop dual-branch mixed relaying cooperative networks with best-path selection over Rayleigh fading channels

2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14) ◽

10.1109/ssd.2014.6808897 ◽

2014 ◽

Cited By ~ 11

Author(s):

Muawiah Hlayel ◽

Ali M. Hayajneh ◽

Mamoun F. Al-Mistarihi ◽

Mohammad Shurman ◽

Khalid A. Darabkh

Keyword(s):

Closed Form ◽

Fading Channels ◽

Bit Error Rate ◽

Error Rate ◽

Rayleigh Fading ◽

Cooperative Networks ◽

Path Selection ◽

Closed Form Expression ◽

Rayleigh Fading Channels ◽

Form Expression

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New closed form expressions for the bit error rate (BER) Of MC-CDMA systems in generalized Nakagami-m fading channels

Proceedings of the Twenty-First National Radio Science Conference, 2004. NRSC 2004. ◽

10.1109/nrsc.2004.239698 ◽

2004 ◽

Author(s):

S. Elnoubi ◽

A. Elshinnawy

Keyword(s):

Closed Form ◽

Fading Channels ◽

Bit Error Rate ◽

Error Rate ◽

Cdma Systems

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Comparison of Bit Error Rate Performance of Multi Carrier DE-APSK Systems and Single Carrier DE-APSK in Presence of AWGN and Rician Fading Channels

Information Technology Journal ◽

10.3923/itj.2005.63.68 ◽

2004 ◽

Vol 4 (1) ◽

pp. 63-68 ◽

Cited By ~ 1

Author(s):

Ibrahim A.Z. Qatawneh

Keyword(s):

Fading Channels ◽

Bit Error Rate ◽

Error Rate ◽

Rician Fading ◽

Rate Performance ◽

Single Carrier ◽

Rician Fading Channels

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CRIM: Conditional Remapping to Improve the Reliability of Solid-State Drives with Minimizing Lifetime Loss

Scientific Programming ◽

10.1155/2018/8171096 ◽

2018 ◽

Vol 2018 ◽

pp. 1-10

Author(s):

Youngpil Kim ◽

Hyunchan Park ◽

Cheol-Ho Hong ◽

Chuck Yoo

Keyword(s):

Solid State ◽

Bit Error Rate ◽

Error Rate ◽

Error Probability ◽

Storage Device ◽

Solid State Drives ◽

Solid State Drive ◽

Bit Error Probability ◽

The Real ◽

Over Time

Solid-state drive (SSD) becomes popular as the main storage device. However, over time, the reliability of SSD degrades due to bit errors, which poses a serious issue. The periodic remapping (PR) has been suggested to overcome the issue, but it still has a critical weakness as PR increases lifetime loss. Therefore, we propose the conditional remapping invocation method (CRIM) to sustain reliability without lifetime loss. CRIM uses a probability-based threshold to determine the condition of invoking remapping operation. We evaluate the effectiveness of CRIM using the real workload trace data. In our experiments, we show that CRIM can extend a lifetime of SSD more than PR by up to 12.6% to 17.9% of 5-year warranty time. In addition, we show that CRIM can reduce the bit error probability of SSD by up to 73 times in terms of typical bit error rate in comparison with PR.

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