The recent global demand for video streaming applications has paved the way for peer-to-peer streaming system (P2PSS). Strategic scheduling scheme and dynamic overlay topology are essential to maintain quality of service (QoS) and quality of experience (QoE) in P2PSS. The concept of P2PSS was tailored towards relying on active peers’ bandwidth to achieve cheap and scalable means of distribution over the Internet, such that peers with highest bandwidth serve as backbones for others. However, selecting backbone peers in low-capacity network environment is challenging due to insufficient bandwidth and poor infrastructure, thereby resulting in poor QoS and unpleasant user’s QoE. In this paper, we conducted a survey on users’ experiences with live video in selected locations in Nigeria. We designed an adaptive P2P streaming protocol and performed a packet-level simulation in Network Simulator 3(NS-3). Diverse simulation scenarios were set up to evaluate the proposed streaming protocol. Trace files data were analysed to measure end-to-end delay, start-up delay, and throughput. Furthermore, the proposed streaming protocol was benchmarked against selected existing schemes. The evaluation results revealed a 7.4% and 28% reduction in start-up and in end-to-end delays and 9% increase in throughput.

最近全球对视频流应用程序的需求为点对点流系统（P2PSS）铺平了道路。战略调度方案和动态覆盖拓扑对于维护P2PSS中的服务质量（QoS）和体验质量（QoE）至关重要。P2PSS的概念是为依赖活动对等方的带宽而量身定制的，以实现廉价且可扩展的Internet分发方式，从而使带宽最高的对等方成为其他方的骨干。但是，由于带宽不足和基础架构较差，在低容量网络环境中选择骨干对等点具有挑战性，从而导致QoS较差和用户的QoE令人不快。在本文中，我们对尼日利亚部分地区的实时视频用户体验进行了调查。我们设计了一种自适应P2P流协议，并在Network Simulator 3（NS-3）中执行了数据包级仿真。建立了各种仿真方案来评估建议的流协议。分析跟踪文件数据以测量端到端延迟，启动延迟和吞吐量。此外，针对选定的现有方案对建议的流协议进行了基准测试。评估结果表明，启动和端到端延迟分别减少了7.4％和28％，吞吐量增加了9％。