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synced 2024-09-03 04:13:27 +02:00
Added concurrent call stat to call spec simulator
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@ -14,7 +14,7 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
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TARGET_MS = audio_slot_ms
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# Packets needed per second for half-duplex audio
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PACKET_PER_SECOND = 1000/TARGET_MS
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PACKETS_PER_SECOND = 1000/TARGET_MS
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# Effective audio encoder bitrate
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CODEC_RATE = codec_rate
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@ -64,8 +64,12 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
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# TODO: This should include any additional
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# airtime consumption such as preamble and TX-tail.
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PACKET_AIRTIME = round(PACKET_LEN*PER_BYTE_LATENCY_MS, 1)
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AIRTIME_PCT = round( (PACKET_AIRTIME/TARGET_MS) * 100, 1)
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PACKET_AIRTIME = PACKET_LEN*PER_BYTE_LATENCY_MS
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AIRTIME_PCT = (PACKET_AIRTIME/TARGET_MS) * 100
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# Maximum amount of concurrent full-duplex
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# calls that can coexist on the same channel
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CONCURRENT_CALLS = math.floor(100/AIRTIME_PCT)
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# Calculate latencies
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TRANSPORT_LATENCY = round((PHY_OVERHEAD+RNS_OVERHEAD)*PER_BYTE_LATENCY_MS, 1)
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@ -83,7 +87,7 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
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TOTAL_LATENCY = round(TARGET_MS+PACKET_LATENCY, 1)
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print( "\n === Simulation Parameters ===")
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print( "\n===== Simulation Parameters ===\n")
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print(f" Packing method : {method}")
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print(f" Sampling delay : {TARGET_MS}ms")
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print(f" Codec bitrate : {CODEC_RATE} bps")
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@ -96,7 +100,7 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
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print(f" On-air length : {PACKET_LEN} bytes")
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print(f" Packet airtime : {PACKET_AIRTIME}ms")
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print( "\n === Results for "+RNS.prettyspeed(LINK_SPEED)+" Link Speed ===")
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print( "\n===== Results for "+RNS.prettyspeed(LINK_SPEED)+" Link Speed ===\n")
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print(f" Final latency : {TOTAL_LATENCY}ms")
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print(f" Recording latency : contributes {TARGET_MS}ms")
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print(f" Packet transport : contributes {PACKET_LATENCY}ms")
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@ -106,8 +110,10 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
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print(f" Encryption : contributes {ENCRYPTION_LATENCY}ms {E_OPT_STR}")
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print(f" RNS+PHY overhead : contributes {TRANSPORT_LATENCY}ms")
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print(f"")
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print(f" Half-duplex airtime : {AIRTIME_PCT}% of link capacity")
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print(f" Full-duplex airtime : {AIRTIME_PCT*2}% of link capacity")
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print(f" Half-duplex airtime : {round(AIRTIME_PCT, 2)}% of link capacity")
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print(f" Concurrent calls : {int(CONCURRENT_CALLS)}\n")
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print(f" Full-duplex airtime : {round(AIRTIME_PCT*2, 2)}% of link capacity")
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print(f" Concurrent calls : {int(CONCURRENT_CALLS/2)}")
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if BLOCK_HEADROOM != 0:
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print("")
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@ -119,5 +125,5 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
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print( "\n= With mspack =================")
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simulate(method="msgpack")
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print("\n\n= With protobuf ===============")
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simulate(method="protobuf")
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#print("\n\n= With protobuf ===============")
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#simulate(method="protobuf")
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