<div style>Hi, All,</div><div style><br></div><div style>Recently the researchers from Networking Research Group of North Carolina State University (NCSU) have proposed an interesting receiver-based TCP solution to tackle bufferbloat in 3g/4g networks. </div>
<div style><br></div><div style>They conducted extensive measurements in four major carriers in US and the largest carrier in Korea to verify the severe bufferbloat problem in currently commercial cellular networks. They cited the </div>
<div style>work from Bufferbloat group and further extended the work to cellular networks. Furthermore, they revealed the untold implementation of TCP, an ad-hoc solution to mitigate bufferbloat, in smartphone's network stack (Android platform). The ad-hoc solution is sub-optimal in many scenarios. Actually it merely mitigate bufferbloat problem in some scenarios. Therefore, the guys from NCSU propose a "Dynamic Receive Window Adjustment" scheme to tackle bufferbloat problem. The extensive experiment results prove that the scheme is efficient and light-weight. </div>
<div style><br></div><div style>It's really excited to find the new direction to tackle bufferbloat, on TCP layer instead of routers (like AQM). The bufferbloat problem actually seems to be the most prominent, comparing with other networks. </div>
<div style>Therefore, we suggest the more efforts to tackling bufferbloat problem in cellular networks and seeking a good solution in TCP layer space.</div><div style><br></div><div style>The link is attached: <a href="ftp://ftp.ncsu.edu/pub/unity/lockers/ftp/csc_anon/tech/2012/TR-2012-6.pdf" target="_blank" style="color:rgb(17,85,204)">ftp://ftp.ncsu.edu/pub/unity/lockers/ftp/csc_anon/tech/2012/TR-2012-6.pdf</a></div>
<div style><br></div><div style>Thanks, </div><div><br></div>-- <br><div>-----------------------------------</div><div><div><br></div></div><br>