-
A Discrete Time Markov Chain Based Comparison of the MAC Layer Performance of C-V2X Mode 4 and IEEE 802.11p
Vehicle to vehicle (V2V) communication plays a pivotal role in intellige...
read it
-
Coupled IEEE 802.11ac and TCP Goodput improvement using Aggregation and Reverse Direction
This paper suggests a new model for the transmission of TCP traffic over...
read it
-
An Analytical Model for CBAP Allocations in IEEE 802.11ad
The IEEE 802.11ad standard extends WiFi operation to the millimeter wave...
read it
-
Reversible Models for Wireless Multi-Channel Multiple Access
This paper presents a network layer model for a wireless multiple access...
read it
-
Performance Evaluation and Optimization of LPWA IoT Networks: A Stochastic Geometry Approach
Leveraging grant-free radio access for enabling lowpower wide-area (LPWA...
read it
-
Quality of Service in IEEE 802.11 WLANs: An Experimental Study
While the IEEE 802.11 protocol is being widely used, it is not specifica...
read it
-
On the Performance of the Spatial Reuse Operation in IEEE 802.11ax WLANs
The Spatial Reuse (SR) operation included in the IEEE 802.11ax-2020 (11a...
read it
The Effect of Multiple Access Categories on the MAC Layer Performance of IEEE 802.11p
The enhanced distributed channel access (EDCA) mechanism enables IEEE 802.11p to accommodate differential quality of service (QoS) levels in vehicle-to-vehicle (V2V) communications, through four access categories (ACs). This paper presents multi-dimensional discrete-time Markov chain (DTMC) based model to study the effect of parallel operation of the ACs on the medium access control (MAC) layer performance of ITS-G5 IEEE 802.11p. The overall model consists of four queue models with their respective traffic generators, which are appropriately linked with the DTMCs modeling the operation of each AC. Closed-form solutions for the steady-state probabilities of the models are obtained, which are then utilized to derive expressions for key performance indicators at the MAC layer. An application for a highway scenario is presented to draw insights on the performance. The results show how the performance measures vary among ACs according to their priority levels, and emphasize the importance of analytical modeling of the parallel operation of all four ACs.
READ FULL TEXT
Comments
There are no comments yet.