Analyzing voice transmission capacity on ad hoc networks
نویسندگان
چکیده
This paper analyzes voice transmission capacity on ad hoc networks by performing simulations related to delay and jitter. We evaluate the influence of QoS provision and mobility on the number of voice transmitting sources. Results show that the maximum number of voice transmissions can be increased when medium access time is reduced by means of a service differentiation mechanism applied to the MAC layer. Also, mobility and network load variations degrade the network capacity for voice transmission, mainly on multihop mobile networks.
منابع مشابه
The effect of mobility on voice transmission capacity in mobile ad hoc networks
Abstract. This paper analyzes the voice transmission capacity in mobile ad hoc networks by performing simulations related to end-to-end delay, jitter, and the number of consecutive losses. We evaluate the influence of mobility and nodes density on the number of voice transmitting sources. Results show that the network capacity for voice transmission in multihop mobile networks decreases, down t...
متن کاملEvaluating voice traffic requirements on IEEE 802.11 ad hoc networks
This paper analyzes voice transmission capacity on IEEE 802.11 ad hoc networks by performing simulations related to delay, jitter, loss rate, and consecutive losses. We evaluate the influence of mobility on the number of sources transmitting voice. Another issue addressed in this paper is the effect of node density on voice transmission. Our simulation model has allowed us to identify the main ...
متن کاملCapacity Enhancement of Ad Hoc Networks using a New Beamforming Scheme Based on ESPAR
This paper proposes a new smart antenna beamforming scheme based on electronically steerable parasitic array radiator (ESPAR). The proposed method is capable of providing better capacity compared to the conventional ESPAR. The termination of each antenna element in this structure comprises a PIN diode in addition to a varactor. Using PIN diode besides the varactor provides more degrees of freed...
متن کاملCapacity of Wireless Ad Hoc Networks
Wireless ad hoc networks have become an important area of research in wireless communications systems. Unlike some existing networking technologies such as Internet Protocol (IP) networks or cellular systems, wireless ad hoc networks have the advantage that deployment of networks does not require preexisting infrastructures. Ad hoc networks have neither fixed topology nor centralized servers; i...
متن کاملA Review of Various Cross-Layer Frameworks for Ad Hoc Network
In this paper, it has been discussed and focused over the various frameworks on ad hoc networks. Since, it is not easy to follow all the aspects and issues over ad hoc networks followed by cross layer designing approaches. This paper discussed various frameworks supported by real-time multimedia, multi objective performance, multi-path transmission for Voice over Internet Protocol (VoIP) commun...
متن کامل