Multi-users Cooperative Transmitting Algorithm in Cognitive WLAN

نویسندگان

  • Yongli An
  • Xiaohong Huang
  • Kaiyu Zhu
  • Yang Xiao
چکیده

Wireless networks provides convenience for people’s daily life. Communication links in wireless environment will be affected by various kinds of interference. Mutual interference between multiple uses is one of the most important problems in the future networks. We proposed two algorithms to solve the problem of mutual interference between multiple users in cognitive WLAN. Our algorithms are based on cooperative transmitting. Finally, the simulation results show that our proposed algorithms can support more users to access to the networks simultaneously.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Parallel Cooperative Spectrum Sensing Based on Genetic Algorithm for Heterogeneous Multi-channel Cognitive Network ?

To sense the spectrum efficiently in heterogeneous multi-channel and multi-user cognitive network, a parallel cooperative spectrum sensing strategy based on genetic algorithm is proposed. It defines the expression of system utility considering the transmission gain and sensing overhead, and protects the primary user network by introducing the penalty function. To obtain the largest system utili...

متن کامل

Spectrum Sensing-Energy efficient on Cluster Based Cooperative Cognitive Radio Networks

Cooperative Spectrum Sensing (CSS) is one of the proposed solutions to overcome the interference, path loss and shadowing effect. CSS is proposed also to enable secondary users to interact with the primary users by exploiting spatial diversity. However, cooperative sensing is also facing one major issue which is the energy consumption in transmitting the sensing reports to the fusion center esp...

متن کامل

Attack-Aware Cooperative Spectrum Sensing in Cognitive Radio Networks under Byzantine Attack

Cooperative Spectrum Sensing (CSS) is an effective approach to overcome the impact of multi-path fading and shadowing issues. The reliability of CSS can be severely degraded under Byzantine attack, which may be caused by either malfunctioning sensing terminals or malicious nodes. Almost, the previous studies have not analyzed and considered the attack in their models. The present study introduc...

متن کامل

A Framework for Decentralized Wireless LAN Resource Management

The proliferation of wireless local area network (WLAN) deployments in enterprises, public areas, and homes will cause frequent geographical coverage overlap among multiple networks. A recent growing interest is the coordination among WLAN providers for efficient resource management over a large coverage area. While radio resource management for a single WLAN has been studied extensively, littl...

متن کامل

Optimized Frameless ALOHA for Cooperative Base Stations with Overlapped Coverage Areas

We consider the problem of cooperative multi-access in the presence of overlapped coverage areas. Assuming a frameless ALOHA transmission scheme, we derive exact analytical expressions for the throughput in the aforementioned scenarios as a function of the frame length of the system and for arbitrary average number of users transmitting in each slot (target degree). In possession of these origi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • JNW

دوره 7  شماره 

صفحات  -

تاریخ انتشار 2012