Scheduling solution for the IEEE 802.16 base station

2008 ◽  
Vol 52 (1) ◽  
pp. 96-115 ◽  
Author(s):  
Alexander Sayenko ◽  
Olli Alanen ◽  
Timo Hämäläinen
Keyword(s):  
Base Station ◽  
Ieee 802.16

An Efficient and Practical Centralized Routing Algorithm for IEEE 802.16 Mesh Network

2012 ◽  
Vol 256-259 ◽  
pp. 2957-2961
Author(s):  
Jia Liu ◽  
Xu Li
Keyword(s):  
Routing Algorithm ◽  
Base Station ◽  
Ieee 802.16 ◽  
Mesh Network ◽  
System Throughput ◽  
Broadband Wireless ◽  
Channel Condition ◽  
Access System ◽  
Self Organized ◽  
Modulation Mode

The IEEE 802.16 mesh network, which is self-organized and self-configured with multi-hop, is deployed to providing an effective solution for broadband wireless access system. The standard defines the basic scheduling scheme, but doesn’t specify the resource allocation and routing scheme in the protocol. Therefore, designing a reasonable scheduling and routing algorithm to enhance the capability is very important for the system. In this paper, we propose an efficient and practical routing algorithm which takes the channel condition and modulation mode into consideration in an IEEE 802.16 mesh network. Furthermore, our algorithm enables direct communications between subscriber stations without referring to the base station. Simulation results show that our algorithm effectively improved the scheduling length, delay and system throughput.

scholarly journals Pengaruh Jarak Base Station Dengan Subscriber Station Terhadap Kinerja Wimax

2020 ◽  
Vol 23 (1) ◽  
Author(s):  
Heru Abrianto ◽  
Andi Anggoro
Keyword(s):  
Base Station ◽  
Ieee 802.16 ◽  
Wireless Access ◽  
Broadband Wireless Access ◽  
Wireless System ◽  
Broadband Wireless ◽  
Subscriber Station

Peningkatan permintaan layanan telekomunikasi tidak sepenuhnya dapat di penuhi oleh penyelenggaratelekomunikasi, Hal tersebut dikarenakan keterbatasan jaringan kabel yang tersedia dan mahalnyapenyelenggaraan untuk jaringan kabel tersebut. Broadband Wireless Access (BWA) menjadi salah satu alternatifsolusi untuk permasalahan tersebut. Seiring berkembangnya teknologi wireless, kemudian muncul WiMAX (Worldwide Interoperability for Microwave Access) sebuah standar internasional mengenai wireless system yangmengacu pada standar IEEE 802.16. Kebutuhan kualitas layanan yang baik menjadi tolak ukur, tingkat kepuasanpelanggan. Jarak Base Station (BS) dengan Subscriber Station (SS) merupakan salah satu faktor yangberpengaruh terhadap kinerja WIMAX, karena jarak antar keduanya akan menyebabkan parameter Free SpaceLoss (L FS ) semakin besar, hal ini mengakibatkan kinerja WiMAX akan semakin turun.

A Ranging Process in IEEE 802.16 Relay System

2010 ◽  
pp. 1661-1676
Author(s):  
Doo Hwan Lee ◽  
Hiroyuki Morikawa
Keyword(s):  
Mobile Station ◽  
Base Station ◽  
Ieee 802.16 ◽  
Relay Station ◽  
Conventional System ◽  
Relay Systems ◽  
Transmit Power Control ◽  
Draft Standard ◽  
Power Control Algorithm ◽  
Group A

With the introduction of relay networks in IEEE 802.16 systems, modifications of the conventional system configuration are necessary. Although the standardization work of IEEE 802.16 relay systems is ongoing by the IEEE 802.16 relay task group, a few problems to be solved and optimized still exist. Among them, this article addresses a problem of ranging processes in the existing draft standard, and provides the solution. First, a thorough study of IEEE 802.16 relay systems and ranging processes is provided. Second, a problem of the existing ranging algorithm is stated, which considers the ranging transmit power control algorithm and the effect of the interference between MS-BS ranging (i.e. ranging between mobile station and base station), and MS-RS ranging (i.e. ranging between mobile station and relay station). Third, a solution of the described problem is provided, and modifications of the existing draft standard are proposed. Fourth, the performance of both existing and proposed ranging algorithms are analyzed and evaluated. A benefit of this article will be the provision of a guideline for the design of IEEE 802.16 relay systems.

A Survey on Hierarchical Cluster Based Secure Routing Protocols and Key Management Schemes in Wireless Sensor Networks

2018 ◽  
pp. 18-26
Author(s):  
Yugashree Bhadane ◽  
Pooja Kadam
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Key Management ◽  
Energy Efficient ◽  
Base Station ◽  
Secure Routing ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Management Schemes ◽  
Cluster Based Routing

Now days, wireless technology is one of the center of attention for users and researchers. Wireless network is a network having large number of sensor nodes and hence called as “Wireless Sensor Network (WSN)”. WSN monitors and senses the environment of targeted area. The sensor nodes in WSN transmit data to the base station depending on the application. These sensor nodes communicate with each other and routing is selected on the basis of routing protocols which are application specific. Based on network structure, routing protocols in WSN can be divided into two categories: flat routing, hierarchical or cluster based routing, location based routing. Out of these, hierarchical or cluster based routing is becoming an active branch of routing technology in WSN. To allow base station to receive unaltered or original data, routing protocol should be energy-efficient and secure. To fulfill this, Hierarchical or Cluster base routing protocol for WSN is the most energy-efficient among other routing protocols. Hence, in this paper, we present a survey on different hierarchical clustered routing techniques for WSN. We also present the key management schemes to provide security in WSN. Further we study and compare secure hierarchical routing protocols based on various criteria.

Sign in / Sign up

Export Citation Format

Share Document