Advancement Through Research
This paper provides a detailed examination of end-to-end delay and delay variation, commonly known as jitter, in a network environment using the OPNET Modeler 14.0 simulation tool. Our study focuses specifically on the performance of the network during the transmission and reception of video and voice packets, which are critical for maintaining high-quality multimedia communication. To manage jitter effectively, we implemented the Chunk-based Jitter Management (CJM) algorithm on the buffer at the receiver's end. This innovative algorithm works by segmenting incoming packets into uniformly sized chunks, thereby allowing for more efficient processing and transmission of data. Our research revealed significant insights regarding packet size and its impact on performance metrics. When maintaining a constant packet size of 576 bytes, we observed that both the end-to-end delay and jitter levels were substantially elevated, which can detrimentally affect the user experience in real-time communications. In contrast, by reducing the packet size to 256 bytes, we noted a considerable enhancement in network performance. This adjustment resulted in lower end-to-end delay and jitter, leading to a more stable transmission. The primary performance metrics utilized in this analysis were jitter and end-to-end delay, both of which are critical indicators of network quality. The simulation results illustrated that our approach successfully achieved not only stable video and voice quality but also improved overall transmission efficiency. These findings underscore the importance of packet sizing and jitter management techniques in optimizing network performance for multimedia applications.
OPNET Modeler 14.0; IP Packet CJM, Jitter, Delay, Buffer
