Wireless Communication Systems and Technologies
Summary
Wireless communication systems enable the transmission of information without physical conductors by converting digital data into electromagnetic waves and propagating them through air or space. At their core lie three functional blocks: a transmitter that encodes, modulates and amplifies a baseband signal; a channel in which signals may suffer path loss, multi-path fading and interference; and a receiver that amplifies, demodulates and decodes the signal, applying error-correction and re-assembling digital data. Over successive generations—from early analog cellular to present-day 5G and emerging 6G—technologies have evolved through improvements in modulation (from simple amplitude and frequency schemes to high-order quadrature constellations), access methods (TDMA/CDMA to OFDM-based multi-carrier approaches), antenna systems (massive MIMO and beamforming) and network architectures (software-defined networking, network slicing and edge computing). These advances deliver ever-higher data rates, lower latency and greater device density, powering applications from mobile broadband and the Internet of Things to ultra-reliable low-latency services for autonomous systems and telemedicine. Practical deployments combine licensed sub-6 GHz spectrum for wide-area coverage with millimetre-wave bands for high-capacity hotspots, underpinned by cloud-native cores that support flexible resource allocation and multi-tenant operation. As wireless systems become increasingly integral to global digital infrastructure, challenges in energy efficiency, spectrum management and seamless mobility continue to drive innovation across the industry.
Research from Nature Portfolio
An inkjet-printed millimetre-wave modulator and antenna array has demonstrated backscatter communications at two gigabits per second with energy consumption below 0.2 pJ per bit, opening a route to battery-free gigabit links for flexible electronics. A novel surrogate-modelling framework for transmitarray antenna design has cut the required electromagnetic simulations by over 75% while retaining full-wave accuracy, enabling rapid optimisation of high-performance apertures across multiple millimetre-wave bands. Directional amplitude backscatter modulation based on a rotating resonant loop has been shown to suppress Doppler artifacts and deliver robust waveform retrieval, suggesting applications in sensing and low-power identification with extended read range.
Wireless Communication Systems and Technologies publication trend
The graph below shows the total number of articles in wireless communication systems and technologies across all publications each year (not limited to Nature Index journals).
Technical terms
Millimetre-wave (mmWave): Radio spectrum roughly from 24 GHz to 100 GHz, offering large contiguous bandwidths for gigabit-class links over short ranges.
Backscatter communication: Passive or semi-passive data transmission achieved by modulating and reflecting ambient RF signals rather than generating new carriers.
Transmitarray antenna: A planar aperture of phase-shifting unit cells that refract or transmit an incident feed wave to form a high-gain beam without active phase shifters.
Network slicing: The creation of multiple virtual networks, each with tailored performance characteristics, on a shared physical infrastructure.
URLLC (Ultra-Reliable Low-Latency Communication): A service class in 5G that targets end-to-end latencies below 1 ms and reliability above 99.999% for mission-critical applications.
OFDM (Orthogonal Frequency-Division Multiplexing): A multi-carrier modulation scheme dividing a broadband channel into many orthogonal narrowband subcarriers to enhance spectral efficiency and resilience to multipath.
References
- Introduction to Wireless Communications and Networks.
- A printed millimetre-wave modulator and antenna array for backscatter communications at gigabit data rates. Nature Electronics (2021).
- Optimal design of transmitarray antennas via low-cost surrogate modelling. Scientific Reports (2023).
- Directional amplitude backscatter modulation with suppressed Doppler based on rotating resonant loop. Scientific Reports (2022).
- Revisiting Wireless Internet Connectivity: 5G vs Wi-Fi 6. Telecommunications Policy (2021).
- 5G network deployment and the associated energy consumption in the UK: A complex systems’ exploration. Technological Forecasting and Social Change (2022).
- Preallocation-Based Combinatorial Auction for Efficient Fair Channel Assignments in Multi-Connectivity Networks. IEEE Transactions on Wireless Communications (2023).
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