A Downlink and Uplink Alignment Scheme for Power Saving in IEEE 802.16 Protocol

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="left">Parameter </td><td align="center">Value</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left"> The frame length </td><td align="center"> 5 ms</td></tr><tr><td align="left">DL/UL ratio </td><td align="center"> 8 : 2</td></tr><tr><td align="left"><span style="width: 31.512501px;"><svg height="15.7" id="M183" style="vertical-align:-3.27605pt" version="1.1" viewbox="0 0 31.512501 15.7" width="31.512501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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t-52 18.5v23q79 14 139 41v-81q3 2 29 20.5t44 29.5q45 28 81 28t66 -22t46 -61q25 20 83 57q39 26 76 26q59 0 93 -40t34 -113v-193q0 -49 10.5 -60.5t54.5 -16.5v-26z" id="x6D"></path></g><g transform="matrix(.012,-0,0,-.012,21.133,15.637)"><path d="M135 536q-20 0 -35 15.5t-15 35.5q0 22 15 37t36 15t35.5 -15t14.5 -37q0 -21 -15 -36t-36 -15zM252 0h-220v26q48 5 59 17t11 63v206q0 47 -9 58t-54 18v24q78 12 142 39v-345q0 -51 11.5 -63t59.5 -17v-26z" id="x69"></path></g><g transform="matrix(.012,-0,0,-.012,24.321,15.637)"><path d="M524 0h-209v26q44 5 55 18t11 65v167q0 114 -91 114q-50 0 -109 -51v-235q0 -50 10 -61.5t55 -16.5v-26h-217v26q51 5 62 17t11 61v206q0 47 -9.5 58.5t-50.5 19.5v23q82 15 139 40v-79l67 47q47 30 83 30q60 0 94.5 -40t34.5 -112v-193q0 -50 10 -61.5t54 -16.5v-26z
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</svg></span></td><td align="center"> 4</td></tr><tr><td align="left"><span style="width: 32.650002px;"><svg height="15.8375" id="M184" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 32.650002 15.8375" width="32.650002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg></span></td><td align="center"> 512</td></tr><tr><td align="left">Packet size </td><td align="center"> 625 Bytes </td></tr><tr><td align="left">Each MS's buffer size </td><td align="center"> 2000 packets</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

The Scientific World Journal

tab1

Table 1

Table 1: A Downlink and Uplink Alignment Scheme for Power Saving in IEEE 802.16 Protocol 