Wireless wises up with smart antennas

Features and Futures of Smart Antennas for Wireless Communications: A Technical Review

“…For proper efficient performance of wireless communications, smart antennas play a vital role that cannot be overemphasized [1]. Therefore, wireless communications and smart antennas are combined especially in signal and data transmission [2][3][4][5][6]. Smart antenna technology is becoming interesting as the communication technologies are receiving dynamic change worldwide.…”

“…Smart antennas can be defined as a system that combines series of antenna arrays with various units for the Adaptive Signal Processing (ASP) to be carried out in space and time. It can also be referred as innovative signal processing techniques which are implemented proficiently to use the directional information of wireless communication network users [1,5,6,13,14]. Owing to increase in total number of users along with new high bit rate data, researchers had predicted a massive upsurge in communication traffic that will be witnessed in mobile and personal communications systems [1].…”

“…As higher the signal impairments in wireless communication occur, the smarter antenna solutions are needed [1,16,17]. Spectral/user density enhancement can be achieved through the technology of smart antenna [5,8]. Smart antenna techniques have ample research consideration, due to the utmost prospects for improved user density [1,4,[17][18][19].…”

“…It could be useful in received signal enhancement and as well as beam formation transmission. It puts nulls in the track of interferers by means of adaptive bring up to date of weights associated with each antenna element [1,5,6,16]. Smart antennas can transform its radiation array through an inhouse response controller despite the fact that the antenna system is functioning.…”

“…Smart antennas offer better capacity and performance advantages over ordinary antennas for the reason that they can be used for the perfect antenna analysis patterns for the fluctuating traffic or Radio Frequency (RF) environments in wireless network [1,5,6,16,24,29]. Smart antennas can be distinctly demarcated as a method to Instantaneous Air Interface (IAI) using a Software Defined Radio (SDR).…”