Abstract: Some demonstrative embodiments include devices, systems and methods of communicating acoustic information of a distributed microphone array between mobile devices. For example, an audio processor may determine source information of one or more acoustic sources based on acoustic information sensed by a distributed microphone array including a first microphone of a first mobile device and a second microphone of a second mobile device.

Abstract: Some demonstrative embodiments include devices, systems and methods of synchronizing between wireless communication devices. For example, a wireless communication device may include a clock to count a local time; a controller to count a virtual master clock corresponding to a group of wireless communication devices according to master clock information defining the virtual master clock, the controller to determine a time drift between the local clock and the virtual master clock, and to determine the virtual master clock based on the local time and the time drift; and a radio to communicate with one or more devices of the group of wireless communication devices a synchronization frame including a master clock time stamp of the virtual master clock.

Abstract: Some demonstrative embodiments include devices, systems and methods of quality of experience indication. For example, an apparatus may include a radio configured to communicate encoded multimedia data during a session over a wireless communication channel; and a Quality of Experience (QoE) estimator configured to determine at least one QoE indicator corresponding to the session, and to provide the QoE indicator to a session manager of the session, the QoE estimator configured to determine the QoE indicator based at least on a mean opinion score (MOS) corresponding to the encoded multimedia data, and a channel quality parameter corresponding to the wireless communication channel.

Abstract: Some demonstrative embodiments include devices, systems and methods of communicating acoustic information of a distributed microphone array between mobile devices. For example, an audio processor may determine source information of one or more acoustic sources based on acoustic information sensed by a distributed microphone array including a first microphone of a first mobile device and a second microphone of a second mobile device.

Abstract: Certain aspects provide a technique for managing transmissions in a wireless network. The technique generally provides for an access terminal to transmit synchronization packets containing timing information regarding an existing piconet. The synchronization packets may contain an indication of resources of the piconet allocated to the access terminal by an access point.

Abstract: Some demonstrative embodiments include devices, systems and methods of to rate adaptation based on goodput. For example, an apparatus may include a packet selector to select at a first device a plurality of goodput packets from a plurality of received packets from a second device, the packet selector to select the plurality of goodput packets based on at least one selection parameter corresponding to the plurality of received packets; a band calculator to calculate a bit-rate band based on a dispersion of a goodput parameter corresponding to the plurality of goodput packets; and a feedback module to provide a bit-rate adaptation feedback to the second device based on the bit-rate band.

Abstract: Some demonstrative embodiments include devices, systems and methods of synchronizing between wireless communication devices. For example, a wireless communication device may include a clock to count a local time; a controller to count a virtual master clock corresponding to a group of wireless communication devices according to master clock information defining the virtual master clock, the controller to determine a time drift between the local clock and the virtual master clock, and to determine the virtual master clock based on the local time and the time drift; and a radio to communicate with one or more devices of the group of wireless communication devices a synchronization frame including a master clock time stamp of the virtual master clock.

Abstract: Some demonstrative embodiments include devices, systems and methods of communicating acoustic information of a distributed microphone array between mobile devices. For example, an audio processor may determine source information of one or more acoustic sources based on acoustic information sensed by a distributed microphone array including a first microphone of a first mobile device and a second microphone of a second mobile device.

Abstract: A method of communication is provided. The method includes detecting at least a portion of a preamble of a packet transmitted by a first device by sweeping over a plurality of receive directions; receiving and decoding a header of the packet based on a first receive direction to identify that the first device had transmitted the packet; and completing reception of the packet based on a second receive direction. An apparatus for performing the method is also disclosed.

Abstract: Multi-layered video structures are scaled over a range of perceived quality levels. An estimated Mean Opinion Score (eMOS)-based encoder control loop is utilized to determine one or more encoder key performance index (KPI) associated with a particular perceived quality level. A KPI-based encoder control loop is then utilized to guide generation of a hierarchical structure having quality and/or temporal and/or spatial enhancement layers, without recalculating eMOS for the scalable structure. In addition, eMOS is used to guide the generation of a hierarchical structure at best-perceived quality levels for a given bitrate budget. Rate adaptation may occur by dropping segments, changing hierarchical structure, or changing the KPI target values. With the structure scaled as a function of perceived quality, perceived quality is impacted predictably as the encoding rate is adapted.

Abstract: Some demonstrative embodiments include devices, systems and methods of to rate adaptation based on goodput. For example, an apparatus may include a packet selector to select at a first device a plurality of goodput packets from a plurality of received packets from a second device, the packet selector to select the plurality of goodput packets based on at least one selection parameter corresponding to the plurality of received packets; a band calculator to calculate a bit-rate band based on a dispersion of a goodput parameter corresponding to the plurality of goodput packets; and a feedback module to provide a bit-rate adaptation feedback to the second device based on the bit-rate band.

Abstract: Various embodiments are generally directed to techniques to dynamically encode video based on channel quality and received video quality. An apparatus for dynamically encoding video includes a processor component; and a dynamic video encoder for execution by the processor component, the dynamic video encoder comprising a reference map generator to generate a reference map based on a channel quality corresponding to a plurality of encoded video frames to be transmitted over a channel, the reference map including indications of relationships between a plurality of video frames for purposes of encoding the plurality of video frames as the plurality of encoded video frames to increase a visual quality of the plurality of encoded video frames when transmitted over the channel and decoded.

Abstract: Certain aspects of the present disclosure relate to a method for efficient ad-hoc peer to peer communication in a contention access period, while antenna directions of communicating peers can point to each other. Certain aspects of the present disclosure relate to a method for improved association of a device in a wireless network with a controller of the network.

Abstract: A method of wireless communications is provided. The method includes transmitting a channel time allocation request from a first device to a second device, wherein the channel time allocation request comprises a list of devices to be trained by the first device; receiving a channel time allocation granted by the second device; and transmitting, from the first device, at least one training packet to at least one device in the list of devices to be trained during the channel time allocation granted by the second device. An apparatus for performing the method is also disclosed.

Abstract: An antenna is described. The antenna includes a planar circular structure. The antenna also includes a radiating element located at the center of the planar circular structure. The antenna further includes one or more parasitic elements located on a contour around the radiating element. The parasitic elements are aligned in parallel direction with the radiating element. The parasitic elements protrude from the planar circular structure. The antenna includes switches separating each of the one or more parasitic elements from ground. A switch in a first position creates a short between a parasitic element and ground. A switch in a second position creates an open circuit between the parasitic element and ground.

Abstract: Systems and methods for initiating a connection between a host and a device in a personal area network are described herein. In one embodiment, the method comprises broadcasting a request for services comprising information indicative of a type of device or service. The method further comprises receiving responses from a first device and a second device, each configured to service the request. The method further comprises connecting to the first device.

Abstract: Certain aspects of the present disclosure relate to a method for efficient ad-hoc peer to peer communication in a contention access period, while antenna directions of communicating peers can point to each other. Certain aspects of the present disclosure relate to a method for improved association of a device in a wireless network with a controller of the network.

Abstract: An antenna is described. The antenna includes a planar circular structure. The antenna also includes a radiating element located at the center of the planar circular structure. The antenna further includes one or more parasitic elements located on a contour around the radiating element. The parasitic elements are aligned in parallel direction with the radiating element. The parasitic elements protrude from the planar circular structure. The antenna includes switches separating each of the one or more parasitic elements from ground. A switch in a first position creates a short between a parasitic element and ground. A switch in a second position creates an open circuit between the parasitic element and ground.

Abstract: Mechanisms for optimizing the selection of a new legal channel during regulatory domain changes and improving the user experience during changes in the underlying physical link having wide applicability to many wireless communications links are disclosed. Applications comprise cellular networks, WLANs, WPANs. Wireless USB, high speed channels for Bluetooth and other uses of WiMedia as well as a wide range of radio technologies that use a number of time and/or frequency-domain separation techniques to create multiple channels in a given portion of the RF spectrum where there is no global agreement on the use of the RF spectrum. Differences could pertain to permitted frequency ranges, permitted power levels, requirements to detect and/or avoid other radio technologies, indoor/outdoor use requirements, and many others.

Abstract: Techniques for wireless communications using two different physical layers with a common medium access control layer are provided.