Master Thesis 2019 - Routing algorithms for 5G
The Integrated Access and Wireless Backhaul (IAB) is a new technology which is attractive in the standardization of future cellular networks since IAB is able to enable flexible and cost-efficient deployment. The wireless backhaul in 5G is a link which provides an interconnection between 5G network nodes and/or transport network using 5G radio access technology. The IAB refers to the technology related to relaying of access traffic by sharing radio resources between radio access and backhaul links. The support of the dynamic route selection and optimization is one of the key objectives for IAB to achieve. There are several challenges for developing routing protocols for IAB in the future 5G deployment. Firstly, wireless links are inherently vulnerable to obstacles especially the moving objects. Secondly, traffic variations can create uneven load distribution on wireless backhaul links leading to local link or node congestion. Thirdly, the algorithms need be adapted to the topology changes due to the mobility of the relays. Last but not least, an important property of the 5G system is the usage of high frequencies (e.g., 6 – 100 GHz). For such high frequency spectrum, the penetration and diffraction attenuation can be much worse compared to lower frequency spectrum. This property of 5G system presents unique challenges for developing routing protocols for IAB in 5G system, given the fact that most of the existing wireless routing protocols operate in the lower frequency spectrum.
This thesis aims at study on the decentralized routing algorithms (e.g., distance-vector based algorithms) and the global routing algorithms (i.e., link-state based routing algorithms) for the future 5G IAB technology. The following steps are envisioned as part of the thesis work:
- Investigate and explore the distance-vector and link-state based routing algorithms.
- Evaluate the routing algorithms which can fulfil the requirements for IAB in 5G.
- Improve and evaluate the selected algorithm(s) in order to achieve desired performance in 5G scenarios (stretch step).
The thesis will be concluded with a result presentation for the Ericsson research team.
This thesis aims at Master of Science (civilingenjör) students in electrical engineering, computer science, or computer engineering. This thesis requires good programming skills in Java, Python, C++, or Matlab to perform the evaluations on the routing algorithms. Background in wireless communication is preferred.
Ericsson AB Mjärdevi, Linköping
Preferred Starting Date
Routing algorithms, 5G, Integrated Access and wireless Backhaul
For informal queries, feel free to email Samuel Axelsson at firstname.lastname@example.org.
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Primary country and city: Sweden (SE) || || Linköping || Stud&YP
Req ID: 263505