Adaptive channel selection control equalizing sojourn time of sending packets inside wireless stations in wireless access networks
Adaptive channel selection control equalizing sojourn time of sending packets inside wireless stations in wireless access networks
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DOI：
10.1109/ccnc.2015.7157952
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发表时间：
2015-07
期刊：
影响因子：
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通讯作者：
T. Teramura;Y. Tanigawa;H. Tode
中科院分区：
文献类型：
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作者：
T. Teramura;Y. Tanigawa;H. Tode
近年来，无线网络已被用于许多情况。然而，网络容量的进一步增加是必不可少的，以便传输许多和各种客户端和应用程序所需的大量流量。通过引入多信道环境，增加了网络容量。然而，在从无线站到基站的分组生成速率在无线站之间不同的情况下，特别是多个信道上的所有通信带宽没有被适当地分配给具有较大生成速率的无线站，即使总共存在足够的可用网络带宽。这个问题在实际的无线接入网络中变得非常严重，其中基站与每个无线站之间的距离是不同的，这意味着在衰落条件下每个站的最大传输速率不同。因此，在本文中，我们自适应地分配适当的通信信道，并作为一个结果，自适应带宽的所有无线站，使他们发送所有生成的数据包均衡逗留时间在他们的发送缓冲区，如果有足够的总网络带宽在所有的通道。最后，通过计算机仿真验证了该方法的有效性.
In recent years, wireless networks have been utilized in many situations. However, further increase in network capacity is essential in order to transfer large volume of traffic demanded by many and various clients and applications. By introducing multi-channel environment, network capacity is increased. However, in cases that packet generation rates from wireless stations to a base station are different among wireless stations, all the communication bandwidth over multiple channels is not properly allocated to wireless stations with larger generation rates in particular, even though there is enough available network bandwidth in total. This issue becomes significantly serious in actual wireless access networks where the distance between the base station and each wireless station is different, that means different maximum transmission rate of each station, under the fading condition. Therefore, in this paper, we adaptively allocate proper communication channel, and as a result, adaptive bandwidth to all wireless stations so that they transmit all generated packets by equalizing sojourn time in their sending buffers if there is enough total network bandwidth over all channels. Finally, we show the effectiveness of the proposed method by computer simulation.