Inter-cell interference in LTE-Advanced can be mitigated using coordinated multi-point (CoMP) techniques with joint transmission of user data . However, this requires tight coordination of the eNodeBs, usin g the X2 interface. In this paper we use discrete-event simulation to evaluate the latency requirements for the X2 interface and investigate the consequences of a constrained ba ckhaul. Our simulation results show a gain of the system throug hput of up to 120% compared to the case without CoMP for low-latency backhaul. With X2 latencies above 5 ms CoMP is no longer a benefit to the network.
|Title of host publication||Proceedings of IEEE Eleventh International Symposium on Wireless Communication Systems|
|Publication status||Published - 2014|
|Event||IEEE Eleventh International Symposium on Wireless Communication Systems - Barcelona, Spain|
Duration: 26 Aug 2014 → 29 Aug 2014
|Conference||IEEE Eleventh International Symposium on Wireless Communication Systems|
|Period||26/08/2014 → 29/08/2014|