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Table 1 Summary of variables used in paper

From: Spectrum sharing via hybrid cognitive players evaluated by an M/D/1 queuing model

A i

Total number of normal players in ith cell

B i

Total number of players that are not vigilante in ith cell

C

Cost function

e g

The aggressiveness of the greedy player

e v

The aggressiveness of the vigilante player

i

Cell indicator

M

Total number of players in network

m

Total number of cells in network

N i

Total number of players in ith cell

n p

Number of primary players

n s

Number of secondary players

P g

Transmitting probability of greedy player

P n

Transmitting probability of normal player

P v

Transmitting probability of vigilante player

Q g

Throughput of greedy player

Q n

Throughput of normal player

Q v

Throughput of vigilante player

u g

Greedy utility function

u p

Primary utility function

u s

Secondary utility function

u v

Vigilante utility function

W p

Primary waiting time

W s

Secondary waiting time

α p

Share of bandwidth used by primary

α s

Share of bandwidth used by secondary

λ p

Packet rate for the primary

λ s

Packet rate for the secondary

μ

Server rate or bandwidth