Wireless communication is a process of transmitting information through radio-frequency, infrared, microwave, or other types of electromagnetic or acoustic waves. Our Wireless communication Assignment help service apprises the students with all sorts of latest details regarding Wireless communication.
Brief introduction of Wireless Communication
It’s the fastest growing and most vibrant technological area in the communication field. Many communications best utilize wires, cables, or any physical medium to transmit information. While taking Wireless Communication into account, it never uses such elements and still, it is the best platform to transmit information from one point to another.
Advantages of Wireless Communication
- Ease of Installation
Research Topics in Wireless Communication
- In-band Full Duplex
- Massive MIMO
- Non-orthogonal multiple access systems
- Spatial modulation
- Millimetre-Wave Communication
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Beamforming in Wireless Communication
Beamforming is the technique that focuses a wireless signal towards a specific receiving device, rather than having the signal spread in all directions from the broadcasting antenna. The result is a faster and more reliable connection.
Beamforming can be classified into two,
- Narrowband beamforming
- Wideband beamforming
These are further classified into Switched Beamforming, Adaptive Beamforming, Analog Beamforming, and Digital Beamforming. Often hybrid beamforming is the current useful topic for researchers. This hybrid beamforming is divided into four classes as codebook design, channel estimation, limited feedback, and energy efficiency.
Relay Section in Wireless Communication
In multi-hop communication, relay selection is important in which the best relay is required among multiple relay points. The major issues in relay selection are as follows: Relay Candidate Selection, Optimal Relay Assignment, and Cooperative Transmission.
Importance of Relay Selection in wireless communication
Lack of relay selection affects the packet flow which affects the QoS in packet transmission. The most affected QoS parameters are the End-to-End Delay and Packet Loss ratio. Relay nodes provide high network and node connectivity that increases the energy efficiency of an individual node.
Energy consumption of nodes depends upon the sum of packets transmitted or obtained from the source to the destination node. However, the large distance between the source to the destination gives higher energy consumption which affects the reliable data transmission.
Types of Relay Selection in Wireless
Generally speaking, there are two kinds of relay selection mechanisms are used as Fixed Relaying and Adaptive Relaying.
- In Fixed Relaying, relay nodes stay at Active Mode which causes High Spectral Inefficiency. Moreover, it does not shows any Error_Message and also Link_Quality
- In Adaptive Relaying, the relays stay at Active Mode only when it needs to send packets i.e. it is used only for demand purposes. Due to this effect, it is helpful in Spectral Efficiency and Packet Flow Reliability.
Relay Selection Mechanisms in Wireless Communication
- Amplify-And-Forward (AF) Relaying
- Decode-And-Forward (DF) Relaying
- Compress-And-Forward (CF) Relaying
- Selective DF (S-DF) Relaying
- Incremental Relaying
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