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LTE: What is link adaptation and how we can increase throughput through link adaptation?

+2 votes
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LTE: What is link adaptation and how we can increase throughput through link adaptation?
posted Jan 21, 2015 by Aaditri Thakur

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Check this link must solve all your doubt -
http://www.signal.uu.se/Publications/pdf/c1114.pdf
Link Adaptation is the technique which is used to determine the best MCS for the existing channel condition. You can increase throughput in LA by reducing noise and interference MCS for the existing channel condition.
Commented on behalf of Sheetala Suaro (https://www.facebook.com/groups/LTE.Professionals )

1 Answer

+1 vote

Link adaptation is the technique through which eNodeB changes MCS coding schemes when channel condition at air interface varies. Suppose channel condition is bad then eNodeB selects lower MCS coding scheme and when channel condition is good then it selects good MCS coding schemes for UL/DL data transmission.

Suppose link adaptation is used at eNodeB. In that case eNodeB shall use fixed MCS coding scheme and will not vary when channel condition is changing. So If channel condition getting bad in that case eNodeB will not change the MCS coding scheme for data transmission. Due to bad channel condition receiver can not receive data as eNodeB is not selecting suitable MCS coding scheme. This will increase the data re transmission will decrease the throughput of the enodeB.

answer Jan 23, 2015 by Veer Pal Singh Yadav
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