A low complex cuckoo search optimizer based OFDM carrier frequency offset estimation for 5G wireless technology

Rao, R. Sambasiva; Malathi, P.

doi:10.1007/s40435-019-00526-9

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…Orthogonal frequency division multiplexing (OFDM) is a basic technology for IoT systems, such as NB-IoT. In OFDM-based IoT systems [15], the channels are divided into orthogonal sub channels, and the data is converted into several parallel data streams, which are modulated to the sub channels for transmission. Multiple carrier frequency offsets (MCFO) [16] may result in ICI [17] and MAI [18] and will hinder the synchronization between the device and HAPS.…”

Section: Introductionmentioning

confidence: 99%

Multiple carrier frequency offset compensation for cooperative HAPS IoT systems

Zhang

Baocong

et al. 2020

J Wireless Com Network

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Due to the deployment flexibility and broad coverage capabilities, High Altitude Platform Station is an efficiency solution of communication access for underserved areas like remote areas. However, for some special scenarios, multiple platforms may need to collaborate to overcome the effects of terrain. But the interferences introduced by multiple carriers and access links may hinder the process and restrict its practicability. In order to eliminate these interferences, a proposal on multiple carrier frequency offsets (MCFO) compensation algorithm was provided in this paper. Furthermore, this paper analyzed the lower bound of bit error ratio (BER) for cooperative HAPS systems. Simulation was also carried out, and the results validate the correctness of our theoretical analysis results.

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Section: Introductionmentioning

confidence: 99%