tailieunhanh - MIMO technology for wireless sensor network

MIMO algorithms in a radio communication send information out over two or more antennas. The radio signals reflect off objects, creating multiple paths that in conventional radios cause interference and fading. But MIMO uses these paths to carry more information, which is recombined on the receiving side by the MIMO algorithms. | ISSN:2249-5789 Snehal Gaikwad et al, International Journal of Computer Science & Communication Networks,Vol 1(2),105-110 MIMO Technology for Wireless Sensor Network Shikha Nema, Snehal Gaikwad Professor(E&TC,VESIT), . Student(E&TC, VESIT) seeshikhanema@, Abstract Wireless sensor network, where an access point (AP) communicates with many sensor nodes (SN), which are simple, cheap, low-complexity and low-power communication nodes. Various schemes that employ multiple antennas at the transmitter and receiver are being considered to improve the range and performance of communication systems. By far the most promising multiple antenna technology today happens to be the so called multiple-input multipleoutput (MIMO) system. MIMO algorithms in a radio communication send information out over two or more antennas. The radio signals reflect off objects, creating multiple paths that in conventional radios cause interference and fading. But MIMO uses these paths to carry more information, which is recombined on the receiving side by the MIMO algorithms. 1. Introduction Wireless sensor networks are an enabling technology for many future surveillance oriented application. The demand for capacity in cellular and wireless local area networks has grown in a literally explosive manner during the last decade. In particular, the need for wireless Internet access and multimedia applications require an increase in information throughput with orders of magnitude compared to the data rates made available by today’s technology. The greatest current challenge for future wireless communication systems is therefore to provide broadband mobile data access with a quality of service as high as possible. Other challenges of wireless communication are like, the limited availability of the radio frequency spectrum and a complex space time varying wireless environment [5]. Traditional wireless communication systems use a single antenna for transmission and a .

• Quản trị mạng
• International Journal of Computer Science and Communication Networks
• MIMO technology for wireless sensor network
• Wireless sensor network
• The MIMO algorithms
• Conventional radios cause interference and fading