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The relation between modulation and waveform in communication systems

In recent research efforts related to 5G and beyond radio access technologies, there has been  many contributions in the development of new innovative methods and schemes related to the following two research directions at the physical layer level. 1) Advanced waveform designs: The purpose here is to create new improved waveforms (other than the conventional OFDM waveform) to enhance the system performance metrics in terms of PAPR, OOBE, ACI, INI, synchronicity, complexity,  spectral efficiency, reliability, and robusetness to ICI, Doppler, and phase noise, etc. Examples of waveforms in this domain include GFDM, FBMC, DFT-s-OFDM, ZT-DFT-s-OFDM, W-OFDM, F-OFDM, edge filtered OFDM, OTFS, OCDM, etc.  2) New modulation techniques: The goal here is to come up with novel modulation schemes (other than the conventional M-ary QAM/PSK modulation schemes) to improve the system performance metrics in terms...

The key motivations behind physical layer wireless security research

The key motivations behind physical layer security research , the role of physical layer security in future communication standards, and the relationship between physical layer security and upper layer security are summarized in the following points: - In all developed wireless communication systems and standards such as 2G, 3G, 4G, 5G, WiFi, WiMax, WiGig, etc., the main objectives of the physical layer transmission techniques and schemes have  mainly  been focused on achieving two key design requirements: 1) increasing data rates (higher capacity and spectral efficiency), and 2) enhancing reliability (lower error rates) along with reducing latency. These two key design requirements have been the primary driving factors for research and development in wireless communications up until recently. In fact, these requirements related to spectral efficiency and reliability are usually attained and met by using novel physical layer transmission techniques; while leaving secur...

The future of wireless with pCell technology

The future of wireless with pCell technology  The new innovative technology called  "pCell", which has been developed by Artemis, is considered a great mile-stone achievement in the history of wireless communication. This technology designs a multiuser wireless system that allows cooperation between distant-located transceivers to achieve extremely large multiplexing gain and spectral efficiency where each user can get his own personal cell and utilize the full spectrum delivered by the service provider without affecting other users' performance.  Basically, by forming and establishing individual spaces of coherent signal with high signal to interference and noise ratio (SINR) around the antenna of each user, pCell generates independent spatial links to multiple users, thus delivering over an order of magnitude increase in the spectral efficiency with respect to current technologies available in the market. The inventors introduced an analytical framework...

Purpose of this Blog

This web-page is created to discuss, talk, and provide you with useful material and deep insights about the most promising and influential technologies that are going to shape the future . These technologies are listed below: 1- Internet of Things (IoT) 2- 5th Generation and Beyond Mobile Communication (XG and Beyond) 3- Artificial Intelligence (AI) 4- BlockChain (BC) 5- Physical Layer Security (PLS)  or Wireless Security (WS) 6- Wireless Sensing (WS) 7- Bio-resonance & Radio-biology