Wi-Fi hotspots are very common now days. Laptops and PDAs use these hotspots to access the internet as these devices have Wi-Fi facility built into it Now a days we can use internet by using Wi-Fi in the mobile phones too. Wi-Fi hotspot is site that

n radio, multiple-input and multiple-output, or MIMO is a method for multiplying the capacity of a radio link using multiple transmit and receive antennas to exploit multipath propagation.[1] MIMO has become an essential element of wireless communic