Definition of dB Absolute Sample Clauses

Definition of dB Absolute. Energy Efficiency Metric‌ It is already well known that the Xxxxxxx channel capacity theorem can be simply manipulated to offer the theoretical minimum heat dissipation required to transmit a bit of information. We start from the formula [64]: where C is the channel capacity (in b/s), B is the channel bandwidth (Hz), S is the signal power, and N is the noise power. By considering purely thermal noise as the fundamental noise source in a transmission system, we have the N=kTB, where k is the Boltzmann constant, T is the absolute temperature (in kelvins), and B is again the system bandwidth. In the limit of allowing B to increase to infinity, the noise power also tends towards infinity, and we can take advantage of the approximation as . We note that attempting to exploit the maximal (infinite) system spectrum (the full bandwidth as ) is analogous to an OFDM or DMT- based communications system, where all bandwidth slots are each maximally exploited with respect to how much data can be transmitted along each frequency slot. In the case as , a slot may offer an exceedingly low data bandwidth; however, we can still exploit whatever minimal data capacity may be available. In the limit as , the Xxxxxxx channel capacity equation tends to: Rearranging the equation (1b), we find that . The quantity S/C is the quotient of the signal power with the channel capacity, and is equivalent to the number of joules per bit (J/b) of information transmitted across the channel, and is equal to kTln2. In other words, as we have already argued from alternative fundamental considerations [58][59], the quantity kTln2 represents the minimum amount of energy dissipated by the transfer of information; in addition in ref. [65] we also argue that this energy is essentially irreversibly lost (i.e. it is associated with an increase in entropy of kln2 per bit of data.) We have used this minimum energy dissipation per bit to define a decibel-based, absolute energy efficiency metric, dB, which offers an objective means to establish the energy efficiency of any information processing system [61]. This is defined as follows: P C dB = 10 log æ ö e 10 çè kT ln 2 ÷ø
Sample 1
AutoNDA by SimpleDocs

Related to Definition of dB Absolute

  • Definition of Dependent The definition of a dependent shall include the domestic partner of an employee and the dependents of such domestic partner. Any employee claiming a domestic partner and/or the dependents of such domestic partner for purposes of this Article shall have an approved City Affidavit of Domestic Partnership form or a registered State of California Declaration of Domestic Partnership form on file in the Employee Benefits Office, Personnel Department, which identifies that individual as the employee’s domestic partner.

  • Definition of Family Members of the employee's immediate family are defined as the employee's spouse, mother, father, brothers, sisters, sons, daughters, stepchildren, mother-in-law, father-in-law, sons-in-law, daughters-in-law, stepparents, grandparents and grandchildren.

  • SECTION I - DEFINITIONS As used in this Agreement, the following terms shall have the meanings ascribed herein unless otherwise stated or reasonably required by the Agreement, and other forms of any defined words shall have a meaning parallel thereto.

  • Definition of Layoff A layoff shall be defined as a reduction in the work force or a reduction in the regular hours of work as defined in this Agreement.

  • DEFINITIONS AND INTERPRETATION Definitions 1.1 In this Contract, unless the contrary intention appears: Activity End Date means the date reported as such in a Student Statistical Report for an individual's enrolment in an individual subject. Activity Start Date means the date reported as such in a Student Statistical Report for an individual's enrolment in an individual subject. Apprentice has the meaning given to it in the Act. Approved Training Scheme means a training scheme approved under section 5.5.2 of the Act. Brokering Services means the recruitment of individuals to participate in Skills First subsidised training in exchange for payment from the Training Provider or the student. It excludes activities carried out by individuals who are employees of the Training Provider on the Training Provider’s payroll, whose role includes the identification and recruitment of potential students. Business Day means a day which is not a Saturday, Sunday or a public holiday in Melbourne, Victoria.

  • Specific Definitions The following terms used in this Agreement shall have the following meanings:

  • Definition of “Cause.” For all purposes under this Agreement, “Cause” shall mean:

  • Basic Definitions 1.1.9.1 Addenda. Written or graphic instruments issued prior to the opening of bids that clarify, correct, or change any of the component parts of the Bidding documents.

  • Definition of Lay-Off A lay-off shall be defined as a lack of work, reduction in the work force or a reduction in the regular hours of work as defined in this Agreement.

  • Definition of Displacement Any employee classified as a regular employee shall be considered displaced for the purposes of this document, when her services shall no longer be required as a result of exhausting the Collective Agreement processes.

Time is Money Join Law Insider Premium to draft better contracts faster.