An Efficient Method to Enhance IP Telephony Performance in IPV6 Networks

IP telephony have played an essential role during the COVID 19 pandemic lockdown. One of the issues that lower the service level of the IP telephony solutions is the inefficient bandwidth exploitation. This paper proposes a Smallerize/Zeroize (SmlZr) method to enhance bandwidth exploitation. The SmlZr method is explicitly designed for the P2P IP telephony calls over IPv6 networks. The essence concept of the proposed method is to use the unnecessary fields in the header to keep the voice media of the packet. Doing so leads to smallerize or zeroize the packet payload and, thus, enhance the bandwidth exploitation. The SmlZr method has outperformed the RTP method for all the comparison parameters. For instance, the SmlZr method shrinks the bandwidth by 25% compared to the RTP protocol. Bandwidth saving is helpful for P2P IP telephony calls because it alleviates the traffic load. Thus, improve the call capacity boosts the call clarity.

Moving through capacity space: mapping disability and enhancement

In this paper, we highlight some problems for accounts of disability and enhancement that have not been sufficiently addressed in the literature. The reason, we contend, is that contemporary debates that seek to define, characterise or explain the normative valence of disability and enhancement do not pay sufficient attention to (1) a wide range of cases, and (2) the transition between one state and another. In section one, we provide seven cases that might count as disability or enhancement. We explain why (with the exception of the first two, which lay the groundwork for the others) each case might count, and on what basis, and why it is been neglected. Each case is explained as a transition in what we call capacity space. We then argue that no definition of disability or enhancement addresses all of these cases, except for strict welfarist accounts of disability that do not rely on a depiction of any particular capacity. We argue further, however, that this is a serious deficiency of welfarist conceptions of disability. We then address objections to our account.

Should We Offer Assistance to Both Wild and Domesticated Animals?

In this paper, I consider whether we should offer assistance to both wild and domesticated animals when they are suffering. I argue that we may have different obligations to assist wild and domesticated animals because they have different morally-relevant relationships with us. I explain how different approaches to animal ethics, which, for simplicity, I call capacity-oriented and context-oriented, address questions about animal assistance differently. I then defend a broadly context-oriented approach, on which we have special obligations to assist animals that we have made vulnerable to or dependent on us. This means that we should normally help suffering domesticated animals, but that we lack general obligations to assist wild animals, since we are not responsible for their vulnerability. However, we may have special obligations to help wild animals where we have made them vulnerable to or dependent on us (by habitat destruction or by captivity, for instance). I consider some obvious difficulties with this context-oriented approach, and I conclude by looking more closely at the question whether we should intervene, if we could do so successfully, to reduce wild animal suffering by reducing predation.

Trust and being “worthy” – the key to creating wealth

Purpose The purposes of this paper are to present a clear model for understanding trust by integrating the diverse viewpoints in the trust literature and to explain how that model enables individuals and organizations to optimize their ability to create value and sustain competitive advantage. Design/methodology/approach This is a conceptual paper that integrates the perspectives of many widely regarded scholars and links trust with value creation in organizations. Findings The paper builds on previously established conditions essential to creating trust but suggests that trustworthiness requires an integrative quality which we call “capacity” that enables those who seek to lead to translate trust into action. That integrative quality is the key to effective execution for individuals and organizations. Originality/value Trust is widely acknowledged to be both a critical condition for successful organizations but a missing commodity in many leader-follower relationships. The paper offers insights for scholars and practitioners about the importance of leaders earning trust by being worthy of their followers’ commitment and cooperation.

Analysis and Performance Evaluation of IEEE 802.11 WLAN

With fast deployment of wireless local area networks VoIP over IEEE 802.11 wireless local area network (WLAN) is growing very fast and is providing a cost effective alternative for voice communications. WLANs were initially set up to handle bursty nonreal time type of data traffic. Therefore, the wireless access protocols initially defined are not suitable for voice traffic. Subsequently, updates in the standard have been made to provision for QoS requirements of data, especially the real time traffic of the type voice and video. Despite these updates, however, transmitting voice traffic over WLAN does not utilize the available bandwidth (BW) efficiently, and the number of simultaneous calls supported in practice is significantly lower than what the BW figures would suggest. Several modifications have been proposed to improve the call capacity, and recently isochronous coordination function (ICF) was introduced to mitigate the problem of low call capacity. The proposed modified ICF which further improves the performance in terms of the call capacity. The proposed scheme uses multiplexing and multicasting in the downlink to substantially increase the call capacity.