An Operational Approach For Wimax At Ultra High Bandwidth With Spectrum 60 Ghz

1. INTRODUCTION Wireless networks are economical and portable. It market ratio is 1:3. Wireless networks are famous among consumers due to secure, reliable, robust and portable connections. WiMax network is one of the famous networks among users; it is provides excellent multimedia services. WiMax is a (Worldwide Interoperability for Microwave Access) which is IEEE 802.16 standard supports licensed and unlicensed bands ranging from 10 to 110 GHz. It is reliable due to availability of signal up to 99.999%. This technology can further be improved by installing HEMT High Electron Mobility Transistor in its antenna. HEMT technology proves that it has very high gain, low noise figure in millimeter wave frequency range. W-band low noise amplifier is a key component of next generation satellite communication systems, wireless LAN, and radio telescope receivers. Some W-band low noise amplifiers developed on GaAs based HEMT. These low noise amplifiers demonstrated better gain and noise figure performances. This technology works on unlicensed band and provides metro area coverage It can be a mesh network. WiMax is the combination of the following core technologies such as Orthogonal Frequency Division Multiplexing OFDM, Low Density Parity Check LDPC, Multiple Input and Multiple Output MIMO/Smart Antenna and Software Defined Ratios SDR Kyung-Ho Kim, (2006). WiMax can deliver high speed data rate upto 10 Gigabyte/s over five Kilometers in LoS Line of Sight network. For non-line of sight coverage it prefers Orthogonal frequency division multiple access OFDMA (Arafat, and Dimyati, 2010) High Electron Mobility Transistor (HEMT) technology is behind this efficient network. It has four and six-stage 60 GHz low noise High Electron Mobility Transistor (HEMT) amplifier, which amplifies and generates millimeter waves. The fourth-stage HEMT version is designed for beamed signal scattering with less noise, with an associated gain of 15.1 dB at 60.2 GHz frequency. Likely, six stage HEMT device provides 4.9 dB of associated gain, with an increase of 21.7 dB at 61.5 GHz frequency. This study proofs that 0.25µmeter Pseudo-Morphic High Electron Mobility Transistor (PM-HEMT) technology is an appropriate choice. It is cost-effective,V-band LNA (Low Noise Amplifier). These LNAs are practically installed in satellites for inter-satellite communication. This research combines WiMax protocol with HEMT technology hardware that covers 50 kilometer area. This combination can be a mesh network based on predefined set of instruction (Jeffrey , et al., 2007, Santhi, Senthil Kumaran (2006) WiMax 60GHz technology uses 0.25 µmeter PM HEMT version Low Noise Amplifier for …