Future 5G networks will rely on heterogeneousdeployment of micro eNodeBs, and is expected that wirelesstransport interfaces, deployed together with each eNodeB, willprovide high-speed backhaul connectivity through the possibilityto create an ad-hoc wireless mesh between the deployed microeNodeBs. Therefore, the backhaul routing strategy will play afundamental role in exploiting the backhaul resources. In thiscontext, we aim to investigate the advantages and limitationsof qualitatively different backhaul routing strategies as UEsdownload TCP and UDP content. In this paper, we comparea backpressure-based strategy that takesper-packetorper-flowbasis (BP-MR) and traditional single path routing (OLSR). Ns-3simulations show that theper-packetBP-MR variant enhancesUDP performance by circumventing congestion but degradesTCP because of reordering. Theper-flowBP-MR variant mini-mizes retransmissions by limiting the excessive reordering, andoutperforms OLSR performance for both UDP backhaul trafficand TCP traffic.
Towards Backpressure Routing in Wireless Mesh Backhauls for Dense LTE Deployments / Patriciello, N.; Nunez-Martinez, J.; Baranda, J.; Casoni, M.; Mangues-Baffalluy, J.. - Volume 2019-October:(2019), pp. 282-287. (Intervento presentato al convegno 15th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob 2019) tenutosi a Barcelona (Spain) nel 21-23 October 2019) [10.1109/WiMOB.2019.8923571].
Towards Backpressure Routing in Wireless Mesh Backhauls for Dense LTE Deployments
Patriciello N.;Casoni M.;
2019
Abstract
Future 5G networks will rely on heterogeneousdeployment of micro eNodeBs, and is expected that wirelesstransport interfaces, deployed together with each eNodeB, willprovide high-speed backhaul connectivity through the possibilityto create an ad-hoc wireless mesh between the deployed microeNodeBs. Therefore, the backhaul routing strategy will play afundamental role in exploiting the backhaul resources. In thiscontext, we aim to investigate the advantages and limitationsof qualitatively different backhaul routing strategies as UEsdownload TCP and UDP content. In this paper, we comparea backpressure-based strategy that takesper-packetorper-flowbasis (BP-MR) and traditional single path routing (OLSR). Ns-3simulations show that theper-packetBP-MR variant enhancesUDP performance by circumventing congestion but degradesTCP because of reordering. Theper-flowBP-MR variant mini-mizes retransmissions by limiting the excessive reordering, andoutperforms OLSR performance for both UDP backhaul trafficand TCP traffic.
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