IEEE 802.15 working group established a new task group, body area network (TG-BAN), to develop short range wireless technology in and around human body recently. This paper investigates networking issues in implant communications at 2.4 GHz frequency band. The object is better understanding of medical implant networks and how and where to start TGBAN work. We applied IEEE 802.15.4b and 802.15.4...

Although the conventional concept of communication is the exchange of logical information, the exchange of Kansei has become very important recently, especially in the case of mobile telephone communications. In addition, it has been recognized that the use of the body, such as facial expressions and gestures, is essential in communications. These facts indicate that technologies that can suppo...

In this paper, subject-specific narrowband (2.45 GHz) and ultra-wideband (3–10.6 GHz) on-body radio propagation studies in wireless body area networks (WBANs) were performed by characterizing the path loss for eight different human subjects of different shapes and sizes. The body shapes and sizes of the test subjects used in this study are characterised as thin, medium build, fatty, shorter, av...

Human body communication (HBC) is a promising wireless technology that uses the human body as part of the communication channel. HBC operates in the near-field of the high frequency (HF) band and in the lower frequencies of the very high frequency (VHF) band, where the electromagnetic field has the tendency to be confined inside the human body. Electromagnetic interference poses a serious relia...

in this paper, we consider a cooperative cognitive radio network in which there is an ofdm primary link and multiple single carrier secondary links.the primary link is required to maintain its secrecy rate above a predefined threshold. if the secrecy rate requirement is not satisfied, the secondary system help primary link to maintain its secrecy rate requirement. in doing so, the secondary trans...

The implementation of an IEEE 802.15.6 section 10 compliant human body communications (HBC) transceiver requires an understanding of the signal integrity expected at the receiver. This paper focuses on the reception of IEEE 802.15.6 compliant data packets through the human body. The experiment used a phantom solution to model the electrical characteristics of muscle tissue in a controlled envir...

organizations are networks of unites and individuals enhancing organizational performance through cooperation and synergy. it is achieved by developing meaningful and purposeful communications of unites and individuals .thus, it is essential to make organizational communications efficient in order to achieve organizational purposes. in this essay, we examined the variables and factors affecting...

The theory of proof-of-principle triple-mode squeezing is proposed via spontaneous parametric six-wave mixing process in an atomic-cavity coupled system. Special attention is focused on the role of dressed state and nonlinear gain on triple-mode squeezing process. Using the dressed state theory, we find that optical squeezing and Autler-Towns splitting of cavity mode can be realized with nonlin...