Volume : 6, Issue : 1, January - 2017

All About 4G

Amar Choudhary

Abstract :

<p>&nbsp;<b style="text-align: justify;"><i><span style="font-size: 10pt; line-height: 115%; font-family: &quot;Times New Roman&quot;, serif;">Mobile wireless industry has started its technology creation, revolution and evolution since early 1970s. In the past few decades, mobile wireless technologies have experience 4 or 5 generations of technology revolution and evolution, namely from 0G to 4G. The cellular concept was introduced in the 1G technology which made the large</span></i></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;text-align:&#10;justify"><b><i><span style="font-size: 10pt; line-height: 115%; font-family: &quot;Times New Roman&quot;, serif;">scale mobile wireless communication possible. Digital communication has replaced the analogy technology in the<o:p></o:p></span></i></b></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;text-align:&#10;justify"><b><i><span style="font-size: 10pt; line-height: 115%; font-family: &quot;Times New Roman&quot;, serif;">2G which significantly improved the wireless communication quality. Data communication, in addition to the voice communication, has been the main focus in the 3G technologies and a converged network for both voice and data communication is emerging. With continued R&amp;D, there are many killer application opportunities for the 4G as well as technological challenges.<o:p></o:p></span></i></b></p>