Error free transmission is the main aim of wireless communication. However nowadays with the increase in multimedia services there is a demand for ever increasing data rates. To reduce the bit error rate forward error correction methods (FEC) methods are now employed. In this paper we compare the BER performance of 16-QAM and 64-QAM modulation techniques with and without interleaving process. A...

Nowadays multitouch techniques are commonly used in various applications. Many digital devices, from large desktop computers to handheld mobile internet devices, are now equipped with touchscreens or touchpads supporting multitouch operations. However, the use of multitouch input in real-world applications have so far been mainly for enhancing navigation and browsing functionalities, for exampl...