Link abstraction for multi-user MIMO in LTE using interference-aware receiver

Recent wireless communication systems are interference limited rather than noise limited. In case of a very strong interferer the conventional assumption of interference as Gaussian is extremely suboptimal. However optimal receivers utilize some prior knowledge about interference to reach optimality and the link abstraction for such receiver structures is not studied well. We investigate how the conventional link abstraction technique can be extended for accurate and efficient link performance modeling for the low complexity optimal receivers. We discuss some of the most studied link abstraction schemes for an optimal
low complexity interference aware receiver for multi-user MIMO in the frame work of LTE. We show the accuracy of discussed abstraction methods with the help of results from the Eurecom’s link level simulator which implements LTE Release 8.