Spatial Degrees of Freedom for Physical Layer Security in XL-MIMO
Gonzalo J. Anaya-López, José P. González-Coma, F. Javier López‐Martínez
Abstract
This paper analyzes the key differences between the plane-wave (PW) and the spherical-wavefront (SW) models in the context of physical layer security (PLS) for extra-large (XL)-multiple-input multiple-output (MIMO) systems with multiple eavesdroppers. Both colluding and non-colluding strategies are considered for the different eavesdroppers. Results show that the propagation features associated to the SW model allow to reach higher secrecy rates, and to reduce the areas where an eavesdropper makes secure communication unfeasible.
Topics & Concepts
Physical layerMIMOSecrecyContext (archaeology)WavefrontComputer scienceDegrees of freedom (physics and chemistry)Computer networkTelecommunicationsComputer securityPhysicsChannel (broadcasting)OpticsGeologyWirelessPaleontologyQuantum mechanicsWireless Communication Security TechniquesAdvanced MIMO Systems OptimizationAdvanced Wireless Communication Technologies