Performance Evaluation Of Routing Algorithms Research Articles

Comparative performance evaluation of routing algorithm and topology size for wireless network-on-chip

Wireless Network-on-Chip or WiNoC is an alternative to traditional planar on-chip networks. On-chip wireless links are utilized to reduce latency between distant nodes due to its capability to communicate with far-away node within a single hop. This paper analyzes the impact of various routing schemes and the effect of WiNoC sizes on network traffic distributions compared to conventional mesh NoC. Radio hubs (4×4) are evenly placed on WiNoC to analyze global average delay, throughput, energy consumption and wireless utilization. For validation, three various network sizes (8×8, 16×16 and 32×32) of mesh NoC and WiNoC architectures are simulated on cycle-accurate Noxim simulator under numerous traffic load distributions. Simulation results show that WiNoC architecture with the 16×16 network size has better average speedup (∼1.2×) and improved network throughputs by 6.36% in non-uniform transpose traffic distribution. As the trade-off, WiNoC requires 63% higher energy consumption compared to the classical wired NoC mesh.

Performance Evaluation of routing algorithms used in largescale WSN: A Step Towards A Smart City

Performance Evaluation of routing algorithms used in largescale WSN: A Step Towards A Smart City

전술 MANET의 최적통달거리 기반 라우팅 알고리즘 성능 연구

본 논문은 MANET 망에서 최적의 통달거리를 구하는 분석 수단을 제공한다. 본 연구의 결과는 특히 전술망에서 유용하게 사용 가능하며, 이는 최적 통달거리가 사용자/라우팅 트래픽 전송용량 및 지연시간, 주파수 간섭 등에 영향을 끼치기 때문이다. 제안된 방안을 적용하여 AODV와 OLSR 라우팅 프로토콜 기반하에 상기 성능지수에 대한 성능 결과값을 분석한 결과, 전술적인 환경 조건을 적용할 경우에 OLSR 프로토콜이 더 우수한 성능을 가짐을 알 수 있다. 또한, OLSR 프로토콜을 적용시 본 논문에서 제안한 최적 통달거리 결과와 기본 통달거리(10km)를 적용한 성능 결과값을 비교하여 본 논문에서 제안한 최적 통달거리 산출 방법이 적정함을 분석한다.

Comparative Performance Evaluation of Routing Algorithms in IEEE 802.15.4 and IEEE 802.11 with Different Ad Hoc Routing Protocol

Problem statement: Wireless ADHOC networks are self organized dynamic networks can share wireless channel without any established central control standard for IEEE 802.11. Approach: The most common protocols are AODV, DSDV, DSR in ADHOC used to ensure the data transmission among themselves. To meet the need of low power and low cost IEEE 802.15.4 standard was developed for sensor networks. Results: Aim of the study is develop an Ad hoc routing protocol in IEEE 802.15.4 this will give more performance in the order of the low cost, low power, guarantee data transmission in routing than IEEE 802.11 Wireless LAN and also we address the comparison and performance analysis also measure the impact of these two standards how ADHOC routing protocols perform in sensor networks. Conclusion/Recommendations: At this point we address the comparison and performance analysis also measure the impact of these two standards in wireless technology.

Performance Evaluation of Routing Algorithms for Mobility Models in Ad hoc Network

Mobile Ad hoc Networks (MANET) have been the focus of many recent research and development efforts because of the necessity of decentralized network configuration. An ad hoc network is characterized by multi-hop wireless connectivity and frequently changing network topology. To facilitate communication in this dynamically changing network topology, several routing protocols are proposed such as Dynamic Source Routing protocol, Ad hoc On-demand Distance Vector protocol and Destination Sequenced Distance Vector protocol. Most of research works are carried out by assuming random mobility models for speed and direction of the mobile. Such models can generate an unrealistic behavior such as sudden stopping and turning. Later, researchers used Uniform mobility models for both speed and position of the node. In this work, we define an exponential distribution model for speed and Gaussian distribution model for nodes position with its intuitively appealing natural formulation rather than earlier assumptions. We have applied our model to different routings protocols and have evaluated network performance under different mobility patterns. It is observed that when the mobile's position follows Gaussian distribution and its speed follows an exponential distribution, the performances of the routing protocol are better compared to uniform distribution.