Revision as of 15:52, 14 May 2017

Return to GSoC 2017 Accepted Projects page.

Project overview

• Project name: Mobile IPv6 Implementation with LTE support

• Student: Manoj Kumar Rana

• Mentor: Tommaso Pecorella

• Abstract: The goal of the project is to implement a novel MIPv6 simulation model which can be integrated into ns-3. The project idea aims at testing the code in different network scenarios, containing different link layer technologies such as Wi-Fi, WiMAX and LTE. The current implementation of LTE does not have support of IPv6 in ns-3. So, the idea of testing MIPv6 code into LTE would follow IPv6 support implementation in LTE first and then the MIPv6 support. Thus, implementation of MIPv6 in ns-3 as the base mobility management solution and providing LTE support within it could help the current network researchers working on ns-3.

• Code: Link to be provided

• Documentation: Link to be provided

• About me: Insert short bio

Technical Approach

• First I want to restructure the MIPv6 code, published in http://www.sciencedirect.com/science/article/pii/S1569190X16302714, to make it RFC 6275 compliance. To do the restructuring complete, the following approaches will be performed:To do the restructuring complete, the following approaches will be performed:

1) Code refactoring: reorganizing internetstack, helper and header components of the MIPv6 module through modifying the internal functions, attributes and the callback variables. 2) Code analysis: both static and dynamic analysis could be performed. The waf tool for code run, PyViz for visualization and tcpdump for pcap tracing could be used. 3) Functional tests: The functional test would be performed in three phase: handoff performance testing, data packet transmission testing and both. Use cases like multiple mobile nodes, multiple correspondent node, different mobility model for the mobile node as well as heterogeneous link layer technologies (Wi-Fi and WiMAX) could be used. 4) The code will be sent for the code review to the ns-3 team.

• Second IPV6 support for LTE would be ensured as LTE currently, only supports IPv4. The changes would possibly be done within the LTE module

files (both .cc and .h) like point-topoint-helper, emu-epc-helper, lte-ue-net-device, epc-sgw-pgw-application, epc-enb-application, lte-enb-net- device etc. Then, the code analysis will be performed as done previously for MIPv6 code. The functional tests would follow bidirectional IPv6 packet transmission between remote host and the UE. The modification/rewriting code will create a patch that could enable IPv6 forwarding in the LTE data plane, enabling the UE to receive and use a /64 prefix, as stated in the standard.

• '/n It is worth noticing that IP packets are tunnelled in the `core' network (i.e., all the EPC part), and their actual IP address is not used

for UE identification in the core. As a consequence, IPv6 use in the `core' network, using ULAs or link-local addresses, could be planned if the previous development is faster than foreseen. This modification could also be simpler than expected, as it is not important to keep a dual stack communication in the core network, and using only IPv6 brings some direct benefits (like simplifying the use of multiple EPCs in a single script).

• Third To ensure the code quality, the following testing approach could be used:

Test MIPv6 handoff performance with the mixed link layer technologies (combination of Wi-Fi, WiMAX and LTE) case, multiple mobile node case, and multiple correspondent node case.

Milestones and Deliverables