Inter-Site Joint Detection with Reduced Backhaul Capacity Requirements for the 3GPP LTE Uplink

—Cellular networks operating with a frequency reuse factor of one are often interference-limited. For that reason, base station (BS) cooperation techniques aiming at mitigating the effects of interference caused by simultaneous transmissions on the same frequency resources in nearby sectors may considerably improve the system performance. However, for that purpose generally high-capacity backhaul links are required, which are often not available in practice. A crucial factor for realizing such cooperative techniques in the short-term therefore is to develop efficient ways for reducing the backhaul load without significantly worsening the achievable performance. In this paper, we evaluate the performance of inter-site joint detection with reduced backhaul capacity requirements for the uplink of a 3GPP UTRAN Long Term Evolution (LTE) system, where different BSs cooperate with each other in order to jointly detect the signals transmitted by various users. By means of extensive systeml...

• Type: Journal
• Year: 2010
• Where: VTC
• Authors: Philipp Frank, Andreas Müller, Joachim Speidel
• Keywords: Backhaul Load, Communications, Joint Detection, Performance, VTC 2010