Network Service Providers

Overview

TCP performance issues on wireless networks are well known. The BTA (Bequant Traffic Acceleration) product increases the speed of TCP traffic, improving customer experience and leading to more revenues and less churn. Bequant's TCP optimization is suitable for any operator with wireless technologies, such as LTE MNOs, MVNOs, Fixed ISPs with WiFi at customer premises and Wireless ISPs.

Mobile/Cellular Network Operators

The following graph shows the acceleration obtained in a 4G mobile operator in Spain. For these measurements, the network was configured so that half of the subscribers received the Bequant TCP Acceleration service, while the other half did not get any TCP optimization. The speed of all downloads was measured for 24 hours, and the following plots show the average speed (in Mbps) of those downloads for traffic with Bequant TCP Acceleration (in red) and without TCP optimization (in blue).

The average acceleration is displayed on top of each plot. Note that all plots show lower speeds during the busy hour, around 8pm, which we have not always observed in other networks.

Different plots are produced depending on the download size and the location of the content servers. The first column shows downloads from Spain, i.e. downloads with a network latency lower than 10ms; the second column shows downloads coming from Europe, i.e. downloads with a network latency between 10ms and 60ms; and the third column shows downloads coming from other continents, i.e. with network latency larger than 60ms. The first row showing downloads smaller than 100 Kbytes, the middle row showing downloads between 100 Kbytes and 1 Mbytes, and the bottom row showing downloads larger than 1 Mbytes).

Acceleration in the uplink direction was even larger, and the following table shows the acceleration results measured:

Upload Size Internet Network
Latency < 10ms
Internet Network
Latency 10ms - 60ms
Internet Network
Latency > 60ms
< 100 KByte 97% 44% 99%
100 KByte - 1 MByte 82% 74% 73%
> 1 MByte 63% 73% Not enough samples

Wireless Internet Service Providers (WISPs)

The following graph shows the acceleration obtained in a Wireless Internet Service Provider (WISP) in Spain, which uses LTE to deliver Internet access service to its customers. For these measurements, the network was configured so that half of the subscribers received the Bequant TCP Acceleration service, while the other half did not get any TCP optimization. The speed of all downloads was measured for 24 hours, and the following plots show the average speed (in Mbps) of those downloads for traffic with Bequant TCP Acceleration (in red) and without TCP optimization (in blue).

Different plots are produced depending on the download size and the location of the content servers. The first column shows downloads from Spain, i.e. downloads with a network latency lower than 10ms; the second column shows downloads coming from Europe, i.e. downloads with a network latency between 10ms and 60ms; and the third column shows downloads coming from other continents, i.e. with network latency larger than 60ms. The first row showing downloads smaller than 100 Kbytes, the middle row showing downloads between 100 Kbytes and 1 Mbytes, and the bottom row showing downloads larger than 1 Mbytes).

Traffic Reduction for MVNOs

Bequant Web compression reduces web traffic, lowering the operator access costs and prolonging the duration of customer monthly data quotas. Savings can be around 10%-15% of unencrypted web traffic, with around 1-3% of total traffic. For operators that do not own the access networks and have to pay for access traffic per volume (e.g. MVNOs) the payback period can be less than 3 months.

Bequant TCP Acceleration is also interesting from a traffic saving point of view, since it resolves retransmitted traffic locally and reduces interconnection costs.

Deployment

The BTA runs on the Bequant BQN platform, which can be deployed on off-the-shelf Intel-based servers, virtual machines (KVM or VMware vSphere hypervisors) or integrated into other network equipment blades. In a Network Service Provider, the BQN/BTA nodes are transparently deployed on the path of the traffic, in-line, in data centers, usually before the access gateway routers (e.g. PDN-GW in an LTE network). However, in an ISP, it can also be deployed between the Edge Router or BRAS and the end users, within the L2 aggregation layer. A BQN deployment can support both TCP acceleration (BTA) and web compression (BTC) simultaneously in the same node.